5-9. A warfighting function is a group of tasks and systems united by a common purpose that commanders use to accomplish missions and training objectives. Warfighting functions are the physical means that tactical commanders use to execute operations and accomplish missions assigned by superior tactical- and operational-level commanders. The purpose of warfighting functions is to provide an intellectual organization for common critical capabilities available to commanders and staffs at all echelons and levels of warfare. Commanders integrate and synchronize these capabilities with other warfighting functions to accomplish objectives and missions.