3-27. With the support of the host nation, U.S. and partner military forces collaborate with interagency representatives and other civilian organizations to design and implement SSR strategies, plans, programs, and activities. DOD leads and provides oversight for these efforts through its bureaus, offices, and overseas missions. SSR facilitates security cooperation and SFA activities that build partner capacity. SSR involves reestablishing or reforming institutions and key ministerial positions that maintain and provide oversight for the safety and security of the host nation and its people. Through unified action, those individuals and institutions assume an effective, legitimate, and accountable role. SFA activities help provide internal and external security for host-nation citizens, under the civilian control of a legitimate state authority. Effective SSR enables a state to build its capacity to provide security. The desired outcome of SSR programs is an effective and legitimate security sector firmly rooted within the rule of law.