U.S. ARMY 421ST REGIMENT UNIT CREST (DUI)

A component of the 991st MultiFunctional Brigade, Nevada Army National Guard, the 421st Regiment is responsible for the administration, operation, management, andmaintenance of the Nevada National Guard’s Regional Training Institute (RTI), also referred to as the 421st RTI.

The Institute’s provides training in certain Career Management Fields and Noncommissioned Officer Education System missions; these can vary over time based on the requirements identified by the Army Reserve, Individual Training Branch of the National Guard Bureau, the Army Program for Individual Training for the Army National Guard, and the Subject Matter Expert Regiment in support of the Army's Modular Force. The Regiment and Institute are based at the Las Vegas Readiness Center in Las Vegas, Nevada.Although approved for wear on 21 April 1997, the 421st Regiment Distinctive Unit Insignia—also referred to as a DUI or a “unit crest”—was first authorized for personnel of the 422nd Antiaircraft Artillery Automatic Weapons Battalion beginning in December 1953. The insignia was redesignated for the 221st Artillery Regiment on 20 May 1960.

The gold section of the insignia with the jagged top is a stylized representation of the Spring Mountains west of Las Vegas, location of the 221st Artillery Battalion’s Headquarters. A black circle with an atomic bomb burst emanating from it denotes the Nevada Atomic Proving Grounds, located a short distance from the Las Vegas Armory; the blast affirms that the Battalion was the first National Guard unit to witness and participate in an atomic exercise at the Proving Grounds. The motto “SOBRE TODO” translates into English as “Above The Rest.”