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.
The Focke Wulf Fw 190 was fast and maneuverable, and packed a heavy armament package, usually of four machine guns and two cannons. Provision was made for carrying a bomb or a drop-tank under the fuselage centerline. Check out this WWII fighter.
In the first reports released since North Korea announced its underground nuclear test on Monday, officials are saying they have found no evidence of a nuclear signature in the air above the blast site.