Almost right. This happened at the conclusion of the Franco-Prussian War in 1871. The Seven Years War was in the late 1750s and ended in the 1763. Many of the British missteps that led to the American Revolution were a result of trying to pay for that war.
Frederick the Great ruled Prussia which eventually formed the core of what would become the German Empire but he was dead long before that happened and he never encountered Napoleon in battle.
Thank you!
I always get those two AND the Mexican- American war versus the Spanish American War ....timeframes
One was 1840s and the other was 1890s ish....can’t remember which was which !