If you're ready to buy, the first thing to do is locate the tire's size on the sidewall. This size will determine what tires are available for your vehicle. Here's what all those numbers and letters mean.
United States Marine Corps. The United States Marine Corps (USMC), also known as the United States Marines, is a branch of the United States Armed Forces responsible for providing power projection, using the mobility of the United States Navy, by Congressional mandate, to deliver rapidly, combined-arms task forces on land, at sea, and in the air.
The United States Army (USA) is the largest branch of the United States Armed Forces and performs land-based military operations.n 1941, the  Army of the United States  was founded to fight World War II. The Regular Army, Army of the United States, the National Guard, and Officer/Enlisted Reserve Corps (ORC and ERC) existed simultaneously. After World War II, the ORC and ERC were combined into the United States Army Reserve.