Honey war

In a short anecdotal history of bees (“the white man's flies”) in Missouri, USA, Rod Green tells how the cutting down of a bee tree led to war between Missouri and Iowa:

The Territory of Iowa and the State of Missouri had during the first part of the 19th Century disputed their mutual boundary, a nine- to 11-mile area that ran across the shared border. When a northeast Missourian cut a bee tree in the region also claimed by Iowa, a series of hostile encounters resulted in both declaring war in 1839. An armed confrontation, the Honey War, mobilized both militias but resulted in no human deaths.

UPDATE 4 July 2005: More details on the Honey War in the Daily Iowegan.