Which type of self-defense pertains to protecting U.S. forces or citizens?

National self-defense refers to the measures taken to protect the citizens, territory, and interests of a nation, particularly in response to threats or aggression against that nation. This concept encompasses the defense of the entire state and its assets, including armed forces and citizens abroad. In the context of U.S. forces or citizens, national self-defense would apply when there is a necessity to respond to an attack or imminent threat that affects the overall safety and security of the country.

This form of self-defense is often invoked in scenarios where military intervention may be required to protect U.S. interests or ensure the safety of American citizens in foreign territories. It aligns with international law, which recognizes the right of nations to defend themselves and their citizens against armed attacks. Consequently, national self-defense reflects a broader strategic approach to security, ensuring that the country as a whole is safeguarded against potential threats.