Marine Corps Warfighting Publication (MCWP) 3-12, Marine Corps Tank Employment, provides Marine Corps doctrine and supporting tactics, techniques, and procedures for the employment of Marine tanks in support of the Marine air-ground task force (MAGTF). Historically, Marine tanks have often played critical roles in the success of Marine Corps combat operations. From World War II, the Marine commander's ability to employ Marine tanks effectively has provided him with a devastating direct fire capability. Today, Marine M1A1 Abrams tanks are the most lethal direct fire and survivable weapon system within the arsenal of the ground combat element. This publication is intended for Marine Corps combat, combat support, and combat service support unit commanders and their staffs operating with or supporting Marine tank units. It describes how the Marine Corps employs tanks across the range of military operations and focuses on preparing, planning, and conducting MAGTF operations with tanks.