The 113th Cavalry Regiment is a cavalry regiment of the Iowa National Guard, with history tracing back to the 19th century Indian Wars.

The Iowa Cow War of 1931 involved violent disputes over the testing of cows for bovine tuberculosis. After distrustful farmers tried and failed to repeal the testing program, they gathered in numbers to block tests from taking place. The farmers believed that the test might infect cows with tuberculosis or make pregnant cows have spontaneous abortions. They also believed that the testing was unconstitutional. The owner of Muscatine radio station KTNT, Norman G. Baker, spread misinformation which resulted in more farmers protesting testing, sometimes causing violence. The Iowa Cow War came to a conclusion when 31 Iowa National Guard units were deployed to stop the protesting. Two farmers were arrested for their actions during the conflict.