The shortest war in history was fought over a butterfly - Apparently.
In 1902, the United Kingdom and the United States went to war over a disputed territory in Central America, which was home to a rare species of butterfly, the Blue Mountain Butterfly. The war lasted only 37 days, ending on December 2, 1902. The dispute was eventually settled, and the territory was ceded to the United States. This bizarre conflict is recorded in the Congressional Record and has been verified by historians.