Military operations is a concept and application of military science that involves planning the operations for the projected maneuvering forces' provisions, services, training, and administrative functions—to allow them to commence, insert, then egress from combat. The operations staff plays a major role in the projection of military forces in any wide spectrum of conflict; terrestrial, aerial, or naval warfare needed to achieve operational objectives in a theater of war. The operations staff have distinct cyclic process features that are essential for military operations to progress: