mythmonster2
BEC NOIR! RUN!
The only reason the SPQR's invasion happened in the first place was because you clearly powergamed by having Spain effortlessly breeze through France in a few days and everyone totally loved their new rulers.
Spain continues its invasion of France, pushing through any enemy armies without a problem thanks to their superiority in numbers and technology, and taking over all of France in a few years. All Frenchmen are happy to be free of the tyranny of their Emperor, and only a few discontents protest.
The Parisian Times gets invaded by a mob of people that found their most recent article an insult towards them and their liberators.
The next day, the Parisian Times issues a retraction.
The SPQR invades Spain while the Spanish are dealing with the people in France. They conquer all the way to Badajoz, Valladolid and Zaragoza in under 3 days using a tactic called Blitzkrieg. OTL Portugal falls on day 4. They then proceed to set up Pasta Restaurants in every Spanish city under their control.
The Spanish resistance destroyes the entire SPQR forces in a coordinated effort that kicks them out of most minor cities on day 1 and out of the rest of Spain in a week, stealing all of their tanks and equipment to beat them with their own weapons.
OK, I can accept invading southern France and leaving the rest. Although I'd swear I had more of Africa before...