DOD primarily focuses on detect, deter, preempt, and defend when they conduct HD missions. (1) Prepare. Emergency preparedness is a shared responsibility and a partnership that includes the Federal government, state and local agencies, the private sector, and individual citizens. (2) Detect. Early detection of threats is essential. Detection is a national effort, which involves maintaining a common operational picture and the sharing and fusing of information/intelligence through a network of federal, state, and local agencies. (3) Deter. An effective deterrence requires the adversary leadership to believe the United States has both the ability and will to preempt or retaliate promptly with responses that are credible and effective. (4) Preempt. Preemption consists of proactive measures taken to prevent or neutralize a perceived or imminent attack. Preemption may include offensive actions such as air strikes, maritime interception, or direct action. (5) Defend. HD missions are those that protect the Nation's sovereignty. (6) Respond. Response, as it relates to HS activities, spans both HD and CS mission areas. (JCS/DoD, Homeland Security (JP 3-26), 2005, p. vi) Thus: (1) Prepare (2) Detect (3) Deter (4) Preempt (5) Defend (6) Respond