The President is both the head of state and head of government of the United States of America, and Commander-in-Chief of the armed forces. Under Article II of the Constitution, the President is responsible for the execution and enforcement of the laws created by Congress.
You can join some branches of the United States military at the age of 38 years but not others. The Army, Navy, Air Force, Marine Corps and Coast Guard each has its own minimum and maximum age requirements for enlistees, including for new recruits in the active-duty ranks, the Reserves and the National Guard.
Five military branches exist within the United States Armed Forces. While these. branches are all separate entities, they often work together, especially. in times of war, to facilitate troop movements, equipment, as well as food, armaments and medical supplies. Army â The Army is one of the oldest military services, established in the. United States way back during the Continental Congress on June 1775. In part. due to its age, the Army and is also the largest of the US military service. branches. The primary duty of the Army is to protect and defend not only the. United States, but also its interests around the world through the use of ground. troops, artillery, and tactical weapons.