After the end of the Civil War, when the Confederacy was reabsorbed into the Union, the county of Van Zandt in Texas wasn't down with the idea and so declared independence as the Free State of Van Zandt in 1867. They even wrote up their own declaration of independence on top of it. The U.S. sent in a cavalry unit to deal with them...only to be stopped by the dense woods of the region and pushed back by the Van Zandt forces. Feeling victorious, the Van Zandt forces then celebrated by getting absolutely plastered.
When the Americans came back, they surrounded the drunk men and arrested them. The prisoners later escaped and were never recaptured or went to trial. Their declaration of independence was also never repealed, so the Free State of Van Zandt still technically exists.