Defense Health Agency. The Defense Health Agency (DHA) is a joint, integrated Combat Support Agency that enables the U.S Army, U.S Navy, and U.S Air Force medical services to provide a medically ready force and ready medical force to Combatant Commands in both peacetime and wartime.
Definition of preemption. 1a : the right of purchasing before others; especially : one given by the government to the actual settler upon a tract of public landb : the purchase of something under this right.
presumptive. adj. 1. based on presumption or probability. 2. affording reasonable ground for belief. 3. (Biology) of or relating to embryonic tissues that become differentiated into a particular tissue or organ: presumptive epidermis. (prÉªËzÊmp tÉªv). adj.