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Irregular warfare (IW) is defined in United States joint doctrine as "a violent struggle among state and non-state actors for legitimacy and influence over the relevant populations" and in U.S. law as "Department of Defense activities not involving armed conflict that support predetermined United States policy and military objectives conducted by, with, and through regular forces, irregular ...
Homeland defense (HD) is the protection of a territory, sovereignty, domestic population, and critical infrastructure against external threats and aggression. (Definition will be incorporated into JP 3-26 [ 1 ] upon its approval).
The intelligence data provided by these ISR systems can take many forms, including optical, radar, or infrared images or electronic signals. Effective ISR data can provide early warning of enemy threats as well as enable military forces to increase effectiveness, coordination, and lethality, and demand for ISR capabilities to support ongoing ...
See National Search and Rescue Committee Search and Rescue emblem of U.S. Coast Guard. Search and Rescue (SAR) is one of the Coast Guard's oldest missions. The National Search and Rescue Plan [2] designates the United States Coast Guard as the federal agency responsible for maritime SAR operations in U.S. and international waters, and the United States Air Force as the federal agency ...
These services include recruitment, record keeping, and training. The Defense Human Resources Activity is the designated lead component for the Defense Personnel infrastructure sector. Space - The defense space infrastructure sector is composed of both space- and ground-based assets including launch, specialized logistics, and control systems ...
There is little known history of civil defense in the United States before the twentieth century. Since ancient times, cities typically built walls and moats to protect from invasion and commissioned patrols and watches to keep an eye out for danger, but such activities have not traditionally been encompassed by the term "civil defense."
National security, or national defence (national defense in American English), is the security and defence of a sovereign state, including its citizens, economy, and institutions, which is regarded as a duty of government.
Foreign internal defense (FID) is a term used by the military in several countries, including the United States, France and the United Kingdom, to describe an integrated or multi-country approach to combating actual or threatened insurgency in a foreign state.