I made my own using that same original poster.
1950s Eastern European poster from the Madnessverse. Caesar Napoleon VI of the House of Bonaparte-Hapsburg, great-great-great-great grandson of Napoleon Bonaparte, is shown with a Polish cavalrymen, both in 19th Century uniforms for the sake of nostalgia.
The text reads:
"Men of Poland!"
"Fight for your freedom from your Prussian overlords! Napoleon VI fights for your liberty like his grandfather did in 1805!"
"Join the League of the Three Emperors!"
This refers to the House of Hohenzollern-Wettin of Prussia and Saxony trying to crush revolts in Poland, where pro-French sentiments are dangerously high.