9-35. When analyzing the higher order for specified and implied tasks, the staff also identifies any be-prepared or on-order missions. A be-prepared mission is a mission assigned to a unit that might be executed. Generally a contingency mission, commanders execute it because something planned has or has not been successful. In planning priorities, commanders plan a be-prepared mission after any on-order mission. An on-order mission is a mission to be executed at an unspecified time. A unit with an on-order mission is a committed force. Commanders envision task execution in the concept of operations; however, they may not know the exact time or place of execution. Subordinate commanders develop plans and orders and allocate resources, task-organize, and position forces for execution.