Insulated doors will help to reduce the amount of outside temperatures that enters your garage, thus keeping it more comfortable for you. This is important for a number of reasons: 1. If your garage is attached to your home, any air in the garage can travel through the doorway to your living area. 2.
Forces redirects here. For the Midnight Oil song, see US Forces (song). The United States Armed Forces are the federal armed forces of the United States. They consist of the Army, Marine Corps, Navy, Air Force, and Coast Guard.
Functions of the Five Branches of the Military. Army. The United States Army is the main ground-force of the United States. The Army's main function is to protect and defend the United States (and its interests) by way of ground troops, armor (tanks), artillery, attack helicopters, tactical nuclear weapons, etc. The Army is the oldest U.S. Military service, officially established by the Continental Congress on June 14, 1775.