Army - Vietnam Combat Aviation Veteran Observer Recon Badge - Air Assault with Vietnam Service Ribbons MugAir assault is the movement of ground based military forces by vertical take off and landing (VTOL) aircraftsuch as the helicopterto seize and hold key terrain which has not been fully secured, and to directly engage enemy forces behind enemy lines.[1][2] In addition to regular infantry training, air assault units usually receive training in rappelling, fast rope techniques and air transportation, and their equipment is sometimes designed or field