Start forming the resistance or plot to infiltrate the enemy's army! In my playthrough as the United States, I was able to sabotage key infrastructure and acquire a wealth of information that made my assault much easier as a result.
One of the best parts of La Resistance is the addition of missions you can perform with your spies.
Now, Germany must contend with new resistance cells popping up that add unique challenges for Germany and Italy whilst trying to stave off growing assaults from the Allies and the Soviets. As a France player, your game was generally done if Germany bulldozed you through Belgium and Luxembourg. Paradox made these balancing choices in an effort to encourage other playable countries, such as the United Kingdom, to play more active roles in the war effort however, La Resistance adds new challenges that will make the occupation of France, Poland, and other countries more difficult with the addition of resistances. Italy during World War II was extremely underwhelming as an Axis power, but in Hearts of Iron IV, they have incredible potential to harm the Allies with added pressure from Germany. Germany has very little trouble stomping France, and they typically don’t struggle with the Soviet Union much either. The Axis is generally extremely powerful in Hearts of Iron IV. New Challenges, New Opportunities La Resistance offers numerous missions that can impact your gameplay decisions