As of 1770, Europe's great powers have mostly - but not completely - recovered from the Seven Years War; none of them had to support so many operations and on such scale as Britain, although Prussia and to a lesser extent Austria had suffered from the war directly. Nevertheless, the worst of the war-time damage was by now repaired, and Prussia succeeded in partially negating its manpower losses by encouraging immigration. As already said, however, most of the great powers have recovered, but not enough to try and go for a revision. For a variety of reasons, most powers chose to concentrate on domestic reforms and to work cautiously to maintain the balance of power. A notable exception was Russia - it was at its peak right now, while its neighbours were forced to tread carefully or suffer; Poland was for all purposes a puppet state, Prussia and Austria both curried favour with St. Petersburg, Sweden was apparently docile under the pro-Russian "Caps" (as opposed to the aggressive "Hats") and immersed in petty intrigues, and the Ottoman Empire, foolhardily trying to "stand up to the Man" (ignoring the fact that Russia was ruled by a woman at the time), protested Russian subjugation of Poland, declared war, won some tiny local victories, and then got thrown back and forced to fight for its life as the best army in Europe poured into Moldavia, while one of Europe's biggest fleets sailed into the Aegean, raised some Greek rabble and sunk the Ottoman fleet. Russia's other neighbours were wary, Kanzler Wenzel Anton von Kaunitz even urged Maria Theresa to ally with the Turks to try and stop the Russian advance, but the Empress was opposed to any alliance with the infidel, while her other advisors were either in agreement with her or were way too scared to act in such an admittedly-rash manner. In any case, the Russians seemed to have bogged down back in 1770. Elsewhere in Europe peace reigned.
Yet its reign was as stable and assured as that of George III in Britain; as superficial as Britain's might. Peace in Europe was built on the balance of power, achieved after a series of wars left all the great powers - apart from, as mentioned, Russia - weakened to more or less the same extent, strong enough to defend themselves and some of their interests but too weak to push forth their agendas aggressively and make any bid for hegemony or even for a real advantage over its enemies. This most notably applied to France, which at the beginning of the 18th century wanted ntohing short of world hegemony and was in position to attain it, later, in mid-18th century, worked to become but "the first amongst equals" - yet ultimately failed as well, and now worked to maintain peace and the status quo, lest it change in the favour of Britain, Austria or Prussia. It didn't seem likely to change in a different direction.
But as we know, it did. In 1770, riots and anarchy consumed London and Middlesex, and King George III, having fallen into fatal indecisiveness in this terrible moment, first underestimated the threat and allowed it to grow, then overestimated it, overreacted, in other words - simply panicked, thought that his life was in danger (wrongly - not even the most die-hard SSBRs (Jonh Wilkes' supporters - the Society of the Supporters of the Bill of Rights) and Radical Whigs actually wanted to OVERTHROW the King; most of the rioters simply wanted John Wilkes free and some reforms introduced), and fled into the night with a few retainers and supporters. He raised an army in Windsor, out of various local volunteers and those of the various Guards that followed him out of London or were at Windsor; this was a rag-tag force, but, George III figured, it would have to do. Then he gave that tragic order to march on London; before that order, reconciliation was still possible, no matter what George III thought, although he personally and the British government in general would have lost face. Before the Royalists attacked, after some initial violence the SSBR - now headed by John Wilkes in person - and the Parliament, which virtually discarded Lord North and was for all purposes led by Edmund Burke, had (on the third day of the Revolution) negotiated a truce, and messangers were sent to search for the King and tell him to return. But one of the messangers was the first victim of the Battle of London, caused by a tragic misunderstandment on King George III's part; the loyal Guards were too trigger-happy and paranoid as they advanced into London. As night fell on the city, a confused fight between the SSBR militias and the Guards took place, all the more confused as the Parliament desperately tried to mobilize the army and those Guard regiments that remained in London, now also thinking that Wilkes was trying to overthrow the King, went over to George's side. Blood was shed in the streets of London, and to make things worse, someone used the opportunity to set fire to some of the buildings. After some confused fighting made worse by the darkness and lack of any real central command on either side, the King was driven out, and fled again, this time - for Dover. While London recovered from the Night of the Mad King, the King himself - now indeed increasingly mad, as he had before himself all the evidence of armed rebellion that he falsely thought to be in process anyway - begun conscripting a bigger army, and also wrote letters to his perceived and real supporters. The results were mostly disappointing - the monarchy wasn't all that popular, but Wilkes was. Nonetheless, some Royalist rebellions begun all over England, and provoked Parliamentarist counter-rebellions. Meanwhile, in Scotland, John Stuart, the disgraced 3rd Earl of Bute, rallied the Cameronians and other loyal "North Britons". And in the meantime, the awaited assistance arrived from overseas - Hessian mercenaries and Hannoverian conscripts. George III was very much an Englishman despite his German blood, but he did half-expect the Englishmen to fail him. In that case, Germans would need to be brought in...
Meanwhile, Edmund Burke managed to negotiate some sort of an uneasy compromise between the SSBR and the Parliament; he failed to persuade the former to disband, but John Wilkes was allowed to take his place as MP. Nonetheless, his influence and popularity were on the decline anyway; most people begun to hold him responsible for this chaotic, confusing situation that was beginning to embroil the country. But Edmund Burke, who was now the de facto leader of the Britain, found himself in a very difficult position as well - though highly critical of King George III, he was definitely a conservative - well, as conservative as Whigs went. He was against abolishing the monarchy, but, as George III's children were taken along to Windsor and later to Dover (and were too young anyway), Burke - as the leader of the anti-Georgian, i.e. Parliamentary faction - was forced into the position of fighting AGAINST the monarchy, after a failed attempt to persuade George III to reconcile. To make things worse, there was no solidarity in the Parliament, especially when, after the failure of the negotiations, most of the Tories, including the Prime Minister, moved to Dover or to join the rebels in the countryside. That meant that Burke couldn't play the Tories against the Radical Whigs, and, to prevent further division, had to cooperate with them and to keep their wishes in mind. That eventually drove him, and his fellow MPs, to proclaim the Second Commonwealth and declared George III and the House of Hannover deposed; a constitution was soon drawn up, based on Burke's ideals of parliamentary multi-party democracy. There was no going back for George III after the Battle of London, and as, accordingly, he didn't go back, Burke himself had to cut off his own paths for retreat. The Fourth English Civil War was on.
At the first glance, however, it seemed that it will take three months at most; the forces appeared to be utterly uneven. Most of the people were supportive of the Parliament; and while George III operated with bands of irregulars, innumerous, unprepared Guards and (generally) poor-quality German troops, the professional British army was almost entirely on the Parliamentary side, as was the Royal Navy which soon cut him off from Hessian and Hannoveran reinforcements. And indeed - Bute's ragtag Scottish army was broken and Bute himself captured already at Felkington having barely captured and looted Berwick-upon-Tweed (an atrocity that further damaged George III's support, although neither he nor Bute had anything to do with it), the Royalist rebels were mostly hunted down and forced to surrender as well, and George III was routed at Maidstone by John Burgoyne, returned to military service straight from the benches of the Parliament. The deposed monarch's much-diminished and demoralized army fell back to Dover, and soon enough was put under siege there. Yet George III persistantly and, as it was thought, senselessly refused to surrender.
The truth was, this war was far from over. George III had immediately upon arrival in Dover begun looking for help from abroad; some of it came immediately from Hesse-Hanau, but more was promised by Prussia - at first. But... Friedrich the Great, though confident of victory should his troops actually reach Britain, immediately realized that this might be... complicated, as the ironically-unrenamed "Royal" Navy still dominated the seas. Also, he was generally skeptical of George III's chances of holding on to power. And besides, he had some bitterness against that king for virtually abandoning Prussia in its hour of need. And then there were the logistics... and Prussia couldn't really afford to deploy any serious forces to Britain, could it? No it couldn't, not in this geopolitical situation when Austria might easily take advantage of Prussian distraction. In other words, the Prussians didn't remove any promises, but didn't do anything neither. Which was why, with considerable reluctance, George III turned to the French when he realized that no Prussian help was forthcoming. For Louis XV, this was no doubt a pleasant opportunity...
On several occassions during the correspondence that ensued George III was only kept back from commiting suicide by his religiousness and from abdicating by his pride. Yet though he remained alive and unrepentant, both his religious feeling and his pride as monarch suffered in any case. In exchange for French help, he had to renounce claims on the French throne and promise several concessions in the colonies, most notably the restoration of New France. Though rather naive, George could also already guess that the French would probably demand more after actually restoring him to the throne. But it was either this or even worse ignominy, that of a monarch defeated and exiled, or even executted by traitors and rabble-rousers. So in the end, he agreed. Jubillant, the French monarch ordered Louis Guillouet, comte d'Orvilliers, to assemble a Franco-Spanish fleet; and in the meantime, as the siege of Dover dragged on and the war seemed to be over in all but in name, the Radical Whigs and the moderate ones begun clashing again in the Parliament; the violent, aggressive Radicals (or rather their supporters in the SSBR) soon begun agitating amongst the masses and organizing riots; but the worst happened in the fleet. The revolution and the initial chaos worsened the economic situation in the country, and as the navy was increasingly undermaintained anyway, actual wages for the sailors declined accordingly; and meanwhile, as is usual after a succesful revolution, militancy lingered on, and soon enough was turned on the initial revolutionaries as they set dangerous precedent. So Radical agitators easily found fertile ground amongst the sailors, outraged both by the almost-nonexistant wages and by their often-abusive officers; and so, a large part of the Royal Navy mutinied somewhere in late 1770. This, ofcourse, sped up the French plans and guaranteed eventual victory - even as the sailors agreed to stop mutineeing in exchange for payment of wages and amnesty for all involved, the Royal Navy, somewhat disorganized and generally weakened by the incident, came under attack. The parts of the British fleet that didn't mutiny were caught in the Strait of Dover by the French and defeated; the rest were overwhelmed by Franco-Spanish naval forces at Beachy Head, and were either destroyed, either surrendered, either withdrew to port, either fled north. Suddenly the French secured control of the La Manche, and were absolutely free to cross. At this point it is good to remember that despite its numerous problems, the French army was still one of the best in the world...
Louis-Georges-Erasme de Contades' landing at the small town of Dungeness in Kent and the breathtaking campaign that followed (during which Ashford and Canterbury fell and Burgoyne, suddenly cut off from all paths of retreat, soon was forced to surrender as the siege of Dover ended) completely turned the tables on the young Commonwealth. This was not without positive effects; facing popular outcry, the Radicals had to both condemn the mutinies and disband the SSBR and the related militias (which however soon were raised as part of Burke's "Great Militia"), and accept the leadership of the Moderates (as the more mainstream Whigs came to be known). Edmund Burke and several of his supporters and other important British MPs formed a War Council, to coordinate the war efforts, ordering the creation of the Great Militia in all the threatened regions, further conscription and diplomatic efforts. The French, meanwhile, pressed on; as Tory rebels and simple defectors that saw the way the wind was blowing now joined George III, while reinforcements arrived from France, the French continued to advance quickly and defeated another British force at Tunbridge Wells. Soon, London itself was threatened; and in the meantime, another Franco-Spanish force occupied the Channel Isles and the Island of Wight, and moved on to capture Portsmouth; despite fierce resistance, the Franco-Spanish troops eventually overwhelmed militia resistance; still, their casualties were too heavy, and had to be replaced. This new menace tied down the British forces that were supposed to attack the advancing Frenchmen in the rear. Despite the winter that approached by then, Contades decided to get this over with and on the 20th of December attacked London. In the meantime it must be noted that the British diplomatic efforts begun to pay off... for all the good that has done them. Willem V, Stadtholder of the United Provinces, was persuaded by Burke to ally with the Commonwealth; Willem always was an Anglophile, and also, like all the Dutch, feared the possibility of either Britain or France fully defeating the other. Yet the Anglo-Dutch fleet suffered from coordination issues, and in a series of battles in the Waddenzee and the whereabouts it was defeated, although not destroyed, by the Franco-Spanish fleet. Which was why the French were free to land even more troops in Chatham, some twenty miles to the east from London. The huge city was not going to be easily taken, the militias and the British Army resisted bravely, but now they were attacked from the east as well, and outnumbered, too. Finally, Burke, the War Council, much of the Parliament and a large part of the hastily-raised British military retreated out of the city, falling back towards Birmingham. Some soldiers and militiamen remained to defend London, putting parts of it aflame and sniping French patrols; inevitably, however, de Contades captured the city. Because of its size it proved difficult to control, as did the starving (after some three months of difficult campaigning) French soldiers; they, along with the local mobs, soon begun looting the city, damaging it further. Occasional explosions and fires - some accidental, some organized by the resistance - ensured both that the French stay here would remain difficult and that London would suffer very terribly. In fact, it would take decades for it to come near its old level again...
But I digress. As 1771 begun, a great part of southeastern Britain was in French and Tory (as George III's supporters now came to be known) hands. Whigs (the enemies of George III) retained control and support elsewhere, but now that the tide had evidently turned against them were also suffering from defections and general chaos caused by the flight to Birmingham; this caused reignition of Tory rebellions in Scotland and England, and the growth of ideology-less or self-declared "royalist" banditry. In Ireland, sectarian strife between the Protestants and the Catholics actually died down - but this was bad news, as both the Anglo-Irish Protestants and the local Roman Catholics rallied around Henry Flood, who agitated for reform, and hinted complete separation, although for now revolts were mostly avoided - Flood didn't want to compromise his position too early. In the Americas, France already made some initial moves - agents of the King arrived to secure Quebec (as it was held by forces loyal to the Parliament, the agents just incited major rebellions instead, forging a Franco-Amerind coalition under Gabriel Gosselin that soon forced the British to fall back into New England or Prince Rupert's Land, or some fringe forts that still held out); also, as the British fleet in the region was weak and likewise startled by the sudden beginning of the hostilities, a smaller French naval detachment under Francois-Joseph-Paul, comte de Grasse, struck at the British Carribean colonies, forcing the surrender of several of them - most notably St. Vincent. The Thirteen Colonies (Fifteen if we count Acadia and Newfoundland) remained untouched for now, however. They had problems of their own - Amerind revolts, the War of the Regulation in North Carolina (where, as in the rest of the colonies, loyalty to the Parliament was upheld... resulting in a sudden twist as the rebels allied with George III, who promised to review their grievances), and the debates on seccession or loyalty, and if the latter - to whom (for now, as already said, the colonies remained allied with the Parliament). However, a Franco-Spanish expedition was being planned, and new Tory rebellions were already commencing in the southern colonies. All was quiet in Africa. In India, the situation detiriorated quickly; at French incitement, the Bengal famine of 1770 - and the ensuing British brutality in collecting taxes from those still alive - transformed into a general armed rebellion. Meanwhile, French diplomats worked to forge a coalition between the rebels, Mysore and Maratha; these efforts failed due to Mysore's war with Maratha and formal alliance with the BEIC, but Madhavrao Peshwa indeed soon begun to variously assist the Bengali rebels. To sum up, the British Empire was aflame.
Yet in 1771, a new hope appeared. Edmund Burke was a gentleman and a good diplomat, much unlike that positively disgusting rascal Wilkes; that immediately made his regime much more tolerable to the great powers of Europe. It was clear that with him, business could be done; almost immediately upon French invasion's start, Burkes recruited the assistance of the United Provinces of Holland and the Kingdom of Denmark-Norway (then dominated by the king's physicist and de facto regent (as the king was schizoprenic and otherwise mentally-feeble) Johan Friedrich von Struensee, a great admirer of the British Revolution); but this naval combination was unlikely to be enough after the initial Franco-Spanish naval victories guaranteed the Bourbons naval supremacy. Then Burke turned towards... Friedrich the Great, whom some still expected to attack the Commonwealth. Those who expected that were naive and unaware that no matter how many anti-Machiavellian treatises Friedrich wrote, he still was an admirer of realpolitik, especially in his post-Seven Years War reign. France, which was so recently written off as a spent force, suddenly wrested control over the seas from Britain, and threatened to turn it into a puppet state. From such a position of predominance France could overrun the Low Countries, and from there move unopposed into northwestern Germany... Hannover would also become a French ally in this situation, and that was even more unacceptable. In other words, the Prussian king, wisened by the near-collapse in the Seven Years War, saw that France was in position to claim hegemony again, and had good chances of success. This was unacceptable; this was worse than the Russians (who by now occupied Wallachia as well and were succesfully advancing against the rebel nationalist Confederation of the Bar in Poland) or the Austrians with their pretensions on Bavaria. A coalition against the French needed to be arranged...
Thus the Fourth English Civil War evolved into a new world war; many also merge Britain's separate conflicts in India and the French proxy wars with Russia (French advisors, such as the Polish rebel commander Charles Francois Dumouriez, and diplomats greatly assisted Sweden, the Polish rebels and the Ottoman Empire, and also influenced their moves significantly; all this was largely an effort to prevent Russia from actively intervenning in Germany). On the British side (as of mid-1771) fought Holland, Denmark-Norway, Prussia, Austria, Russia, Poland (meaning the puppet king Stanislaw II August Poniatowski), Palatinate of the Rhine and several other minor German states. On the French side fought Spain, Hannover, the Polish rebels, the Ottoman Empire, the Marathan Confederacy, Mysore (these two were eventually reconciled through French efforts and the British failure to assist Hyder Ali against the Marathas), and several lesser German and Indian states. More joined in later in the war, others dropped out for one reason or another.
Despite the unexpected beginning of the war in Europe in March 1771, France had throughout the year made good use of its unchallenged (the British rebased their weakened fleets in the north, at Sunderland, to regroup and repair) naval supremacy, striking in force against Britain's North American colonies. French fleets and forces finished off the British Lesser Antilles, although an attack on Jamaica failed (both due to attrition and to the heroic efforts of Baron George Brydges Rodney); in the meantime, the Spanish expelled the British "settlers" from British Honduras; a large French expedition captured Newfoundland and reinforced the Quebecois rebels, defeating the remaining British forces there. Several raids against New England's coasts and ports occured, and New York was briefly occupied by French troops that damaged the city badly upon withdrawal; this action was quickly and skillfully exploited by Burke and his numerous American supporters to finally and definitely guarantee New England's loyalty to the Commonwealth. Yet this was not enough in the south; Franco-Spanish invasion forces struck later in the year to assist the Tory insurgents, and despite some resistance that was belatedly organized Georgia and both Carolinas were overran. In Virginia, militias were levied (under one of the prominent local planters, the Seven Years War hero George Washington) and a volunteer force from New England, New York and Pennsylvania was assembled.
Meanwhile, despite negotiations between the War Council and the Irish Parliament resulting in further delay of any rebellion and a general calming of tempers, back in Great Britain the Commonwealth was still under attack. The Scottish rebels were mostly defeated at Glasgow, but Tory bands made good use of British distractions; meanwhile, the French continued to advance. Having finally secured their positions in London and Portsmouth, they advanced, capturing Southampton and Winchester, and winning a significant battle at Reading. Albeit attacks on Oxford and (from the sea) on Norwich were repulsed, these were only half-hearted attacks; the main Franco-Spanish forces were considerably slowed down by unconventional tactics used by the British irregulars, to which the French were completely unaccustomed. Still, they ploughed on, and the defeat at Reading, though not decisive, was still a pretty serious one. When later in the year, the French besieged Oxford, and secured Bedford with new reinforcements, it became clear that radical, desperate measures were needed. After a furious debate, the War Council ordered a mass conscription and requisitions in nearby areas; all resistance to this was declared national treason. Though the War Council's capability for actually imposing this decree was limited, and desertion occured very often, the British army size was doubled by the beginning of 1772.
The French immediately struck against Netherlands, overruning the Austrian ones with comparative ease (Austria had no time to prepare proper defenses there), but stalemating in the United Provinces, despite highly-damaging naval raids; Victor-Francois, 2nd duc de Broglie, decided to leave some garrisons in the occupied territories and strike eastwards, where Prussian Cleves and the Palatinate of the Rhine were overran. Allowing the French to rampage in the west, the Prussians used this moment to invade Hannover. Though much to their surprise there actually were some French troops deployed there after the French spies learned of Friedrich II the Great's plans, the Prussians struck from multiple directions and in overwhelming force, and quickly occupied both Hannover and Braunschweig (which didn't resist, its ruler being a personal friend and comrade of Friedrich II), routing the French and associated forces at Wolfsburg. Later in the year, the first engagement between the primary French and Prussian forces took place at Herne in Westphalia; that battle was indecisive, but the Prussians saw it fit to fall back to Paderborn. In the south, nothing really happened yet, as Austrian forces were deployed in the west, although some fighting did take place around Heidelberg (Palatinal city, but east of the Rhine); the small French occupying force eventually retreated beyond the Rhine. The war was still in the maneuver phase.
No Italian theatre existed; Savoy, Tuscany, the Papal States, Venice and all the minors maintained strict neutrality, encouraged by both Austria and France as the former was fearful that it would naturally be forced on the defensive there (as France was hard to invade over the Alpes, while attacking northern Italy from France was still slightly easier), and the latter was busy enough at other theatres.
Russians (who gave moral support to the anti-French coalition) continued to hunt for Polish partisans, foiling an attempt to kidnap the king, but failing to catch Doumouriez who had taken up the task of reforming the Confederation forces into something more efficient; that took much of the year. Greatest victories were achieved in the south; the thunder of victory sounded as the various forts of Crimea, long thought impregnable, fell one after one to the Russian war machine. This was used by the Mamlukes in Egypt and Iraq to achieve de facto independence, and the Egyptian ruler Ali Bey even conquered Syria in the confusion.
In India, the Marathas, Mysoreans, Bengali rebels and miscellanous minor Indian principalities were, through efforts of French diplomats and Madhavrao Peshwa, united in coalition and soon managed to limit British control to the various coastal and riverine cities as what little control the BEIC retained over the countryside detiriorated; this combined with the bankruptcy crippled the once-mighty company, but its garrisons fought on. Though Bihar, the Northern Circars and several isolated trade posts were lost by the year's end, the British managed to counterattack in Bengal, using superior weapons and organization to rout the rebels and Marathas at Rampur Boalia. It was a pyrrhic victory, but it prevented complete collapse, or at least delayed it.