5-6 July
Alexander von Hoyos on a Vienna street. Austro-Hungarian envoy Count Hoyos, travels to Berlin to establish level of German support for Austrian action against Serbia. The Hoyos mission is a brilliant success and both Kaiser Wilhelm II and Chancellor Theobald von Bethmann Hollweg encourage Austrian action and Germany issues blank cheque, promising unconditional support to their ally. Tensions escalated as decisions were made to war against Serbia.
7 July
Austro-Hungarian Ministerial Council convenes and decides on a deliberately unacceptable ultimatum to Serbia to initiate military action or Serbias humiliation. The ultimatum was postponed though, seeing as the French heads of government were currently in St. Petersburg, Russia.
20-23 July
French government officials that traveled to Russia had gone in search of a treaty stating they would protect each other in case of a war, as this seemed likely. The czar accepted the deal and the Third French Republic and Russian Empire began its military pact.
23 July
Austria issues ultimatum to Serbia, giving Serbia 48 hours to reply.
25 July
Serbia replies to the ultimatum, surprisingly meeting almost all demands. The only demand they could not agree to was the sixth as allowing international authorities to handle investigations broke the Serbian constitution. Nonetheless, even though all but one demand was agreed to, Austria-Hungary broke off diplomatic relations with Serbia.
26 July
Britain proposes mediation conference but the proposal is denied by Berlin and Vienna as their minds had been made up about the war and its likeliness. Partial mobilization of four Russian districts as Czar Nicholas II begins to prepare for a war with the Central Powers.
28 July
Austria-Hungary declares war on Serbia officially and begins to mobilize troops to invade the Balkan nation. Wilhelm II proposes Halt in Belgrade which was the Kaiser proposing that Austria take Belgrade from the Serbs, but Franz Joseph ignored it.
29-30 July
Chancellor Theobold von Bethmann Hollweg attempts to restrain Austria for the first time of the war.
30 July
Tsar Nicholas II authorizes Russians to fully mobilize their troops and begin preparing for a full war. Soldiers kissed their wives goodbye as they headed for the battlefield.
1 August
Germany declares war on Russia because of Germany's alliance with Austria. France and Germany begin general mobilization of their massive armies.
2 August
German troops invade Luxembourg as part of the Schlieffen Plan. Germany issues ultimatum to Belgium as the next condition of the plan. British cabinet approves protection of French coast and of Belgian neutrality if Germany moves on with the militaristic plans.
3 August
German troops invade Belgium in a surprising move to take out as many enemies as possible. Germanys declaration of war on France was sent to Paris, officially cutting off diplomacy between Poincare and Wilhelm II. Italy announces to the international community that it has decided to remain neutral in the war, breaking the Triple Alliance of the Central Powers.
4 August
Britain declares war on Germany for the invasion of Belgian territory. The Royal Navy begins to load up in preparation for naval battles in the North Sea.
6 August
Austria-Hungary declares war on Russia because of the czar's alliance with the Serbian government making that the final declaration of the July Crisis. The peace had been broken, and the war to end all wars had begun.