Top brass from the Army, Navy and Marine Corps were arguing about who had the bravest troops. They decided to settle the dispute using an enlisted man from each branch. The Army General called a private over and ordered him to climb to the top of the base flagpole while singing ""The Caissons Go Rolling Along,"" then let go with both hands, and salute. The private quickly complied. Next, the Admiral ordered a sailor to climb the pole, polish the brass knob at the top, sing ""Anchors Aweigh,"" sa…