The T21D "Attack-Retreat" moving target system is designed to move the Manikin Mike 3-D human target at high speed directly at the trainee (for "attack") or run away (or "retreat") from the trainee for realistic human running patterns. Operating features are similar to the T21B target system, with the added ability to move any object, from simple "box man" targets to the more sophisticated Manikin Mike 3-D targets, over short distances with ease.