20 août 1862 - US Dakota war, Battles at Fort Ridgely

Description:

Dakota forces attack the fort twice on August 20 and August 22. The fort, which was once the training base and staging ground for Civil War volunteers, suddenly becomes one of the few military forts west of the Mississippi to withstand direct assault. Fort Ridgely’s 280 military and civilian defenders hold out until Army reinforcements end the siege.