Sergeant at Arms, the officer of an organization who preserves order during its meetings. A sergeant at arms functions mainly at formal gatherings, where he enforces rules of procedure; in a legislative body he also enforces executive commands. Both houses of the U.S. Congress have a sergeant at arms, as do both houses of the British Parliament.
Unique among the U.S. armed forces, the Coast Guard is perpetually on active duty, entrusted with lots responsibilities and chronically underfunded. Learn about the U.S. Coast Guard.
The military uses virtual reality for most everything -- from learning to fly a jet fighter to putting out a fire onboard a ship. Learn about how virtual reality military applications help with training and safety enhancement, and serve as a tool to analyze military maneuvers and battlefield positions.