The service has taken part in every U.S. war since, serving notable roles in the War of 1812, both world wars, the Korean War, the Vietnam War and more recently in Afghanistan and Iraq.

The U.S. Marine Corps is older than the United States itself. 4 million Americans are set to retire this year. If you want to join them, click here now to see if you’re behind, or ahead.

Like many aspects of Marine Corps culture, it started out with a small group of Marines and slowly spread to the entire service. It's been Marine Corps custom ever since.

Who Really Won the War of 1812? 🇺🇸🇨🇦 A war with no clear victor — or was there? The answer might surprise you… and rewrite what you thought you knew about history.