Soldiers who served in the war. Who is trying to maintain the stability and the maintenance of, and who is currently fighting and other acts of war are classified in 3 branches: Army, air force and Navy?
Soldiers who have served in the war. This is a security and maintenance, and the force and other acts of war were divided into three forces, including Army, Navy and Air Force.
The military is the who's acting in battle. The healing and maintenance of the country and the security force and served other during the war were divided into 3 armies, including army. The Navy and the air force.