Field Manual 10-1, "Quartermaster Principles," is the Army's capstone manual for Quartermaster (QM) corps soldiers and units. It focuses on current doctrine in FMS 100-5, 100-10, and 100-16. It also considers recent combat experience from operations Desert Shield/Storm; guidance in TRADOC Pamphlet 525-5 and the Combined Arms Support Command's publication "Vision of Combined Arms Support;" and information form TRADOC battle labs and warfighting lens analyses. Since 1775, the QMC has provided logistical support to the Unites States Army's combat forces. During its long history, it has developed a special one-to-one relationship between quartermasters and supported soldiers. This has been a critical factor in the success of the Corps and the keystone to its heritage. QM soldiers and units have a dual responsibility. They must be technically proficient and prepared to provide supply and field service support to the force. And, they must be tactically proficient and prepared to deploy as quickly as the combat and combat support forces. Once deployed, they must be able to fight and defend themselves. At the same time, they must concurrently provide logistical support to an extended battlefield. The QMC is one of the more complex and diverse branches of the Army. It has personnel proponency for 11 enlisted military occupational specialties (MOSs) in three career management fields, four warrant officers MOSs, and five officer areas of concentration. QM personnel serve in every type of unit - from units at the forward line of own troop (FLOT) to the theater rear boundary. These units range from light infantry to armor units, from special operations units to personnel and administration units, from artillery to signal units and from ordnance to transportation units. This manual looks at the role of quartermasters and QM units as they function on the battlefield. It will guide the development of quartermaster doctrine, tactics, techniques, and procedures related to: supply and storage, Army field feeding, general supply, water supply, mortuary affairs, petroleum supply and airdrop support operations. It also will serve as a guide for future development of training, leader development, organizations, materiel, and soldier support. This manual sets guidelines for unit commanders and their staffs operating within the Army's support structure. Further it: realigns supply and field service functions within the Quartermaster Corps (QMC) and explains how they relate to classes of supply and field services; explains to combat arms, combat support and combat service support commanders and their staff how and where they will receive QM proponent supply and field services support; introduces QM unit missions and explains unit operations; outlines relationships between the various levels of supply and field services support.