why is one US flag patch backwards on mil uniforms?

Factual Questions
21

Yeah, but then how do you know if you’re coming or going?

22

Here’s a picture of the cav hats in action, just this week. Chouinard Fan is the closest in the line of four marching.

http://us.f13.yahoofs.com/bc/43e81e5ameea99219/bc/Friends/Marching+cav+hat.jpg?BC0BeHEB5zPd8Fz6