Revanchism (French: revanchisme, from revanche, "revenge") is a policy or political doctrine aimed at a revenge or the reversal of the losses incurred in previous political or military defeats, most commonly, the incurred territorial losses. The term revanchism originated in 1870s France in the aftermath of the Franco-Prussian War among nationalists who wanted to avenge the French defeat and reclaim the lost territories of Alsace-Lorraine.
Revanchism draws its strength from patriotic and retributionist thought and is often motivated by economic or geopolitical factors. Extreme revanchist ideologues often represent a hawkish stance, suggesting that their desired objectives can be achieved through the positive outcome of another war. It is linked with irredentism, the conception that a part of the cultural and ethnic nation remains "unredeemed" outside the borders of its appropriate nation-state.
