The President assisted by the Chairman of the Joint Chiefs of Staff through the SecDef, establishes unified combatant commanders for {Ans: the performance of military missions}Organizations designed under Total Force integration share equipment, facilities, and resources to carry out a common mission. When the Reserve or Guard unit is host, with a Regular Component tenant, it is called {Ans: active association}The President serves as Commander in Chief & has final command authority. However, as head of the executive branch, he is subjected to the checks and balances system of: {Ans: the legislative and judicial branch}On 20 March 2011, under Operations Odyssey Dawn, aircraft were launched to enforce United Nations Security Resolution 1973, to protect Libyan citizens from further harm under Moammar Gadhafi's regime. On 31 march 2011, the U.S. passed military command of the operation to NATO and took up a supporting role for the remainder of the operation, which was carried out under {Ans: Operation Unified Protector}The Secretary of Defense and the Joint Chiefs of Staff established the functions of each branch of the Armed Forces in the Key West Agreement of 1948. The general functions of the Armed Forces are to: {Ans: -