The branches will depend on the country in question. Some have more than others. Some have them all merged into a single group. The following are the branches of the military in the United States: Army Navy Marines Air Force The Coast Guard is currently under the control of the Department of Defense but during peace time is under the control of the Department of Transportation. The predecessor of the coast guard was the Revenue Cutter Service. The Air Force came from the post World War 2 split of the Army and the Army Air Corps (the Air Corps becoming the Air Force). National Guard the army Navy Air force coast guard spec ops special forces special activities division national guard navy seals reconnaissance division Rifle divisions military relief land relief air relief In the US, we have Army, Navy, Air Force, Marines and during times of war, the Coast Guard.
The GPS (Global Positioning System) satellites that are orbiting the Earth were originally known as the NAVSTAR GPS. This is a radio navigation system that was originally started by the Department of Defense in 1973. The system is owned by the United States government and operated by the United States Air Force. Although the system was originally restricted to the military, it has been used by civilians since the 1980s.
