4-19. Based upon the landpower requirements developed by the theater armies and validated by the Joint Staff, the Department of the Army and FORSCOM develop force packages based on cyclical readiness. This includes forces for contingencies and forces needed to support security cooperation activities. Wherever possible, the Department of the Army identifies regionally aligned forces that concentrate on missions and capabilities required for a particular AOR. Regionally aligned forces begin planning for their mission in conjunction with the theater army staff. The tailored force package is task-organized by FORSCOM to facilitate strategic deployment and support the gaining joint force commander’s (JFC’s) operational requirements. FORSCOM is not the sole provider of Army forces; other supporting Army Service component commands (ASCCs) may contribute forces. The result is a set of trained and ready Army forces intended either for contingencies or for planned deployments, such as a rotation of forward-based forces.