(The video above contains some strong language.)
All patriotic Americans respect the American flag, but it means even more to the Marines who put their lives on the line to protect this country.
So at a protest, when left-wingers were riding around with an upside-down flag, two Marine veterans had enough. They decided to chase them down on foot and stop the shameful anti-American display.
Do you support what these Marines did to protect the American flag? Please leave us a comment and let us know what you think.