3. The French and the English Against Napoleon (Seventh Coalition, 1815)
Longtime adversaries, France and England had waged centuries of wars. Yet during the brief period of the Hundred Days, both joined the Seventh Coalition to stop Napoleon’s return. French Royalists fought alongside British forces at Waterloo, striving to end Bonaparte’s reign. These battlefield alliances signified how shifting dangers could momentarily override generational enmity. (en.wikipedia.org)



