Which of the following are considered the types of self-defense?

The correct choice identifies the primary categories of self-defense recognized in various legal and military contexts. Individual self-defense refers to the right of a person to defend themselves from imminent harm or threat, allowing for personal protection. Unit self-defense encompasses collective defense actions taken by a military unit or group, which operates under the premise that members support one another in response to threats. National self-defense involves actions taken by a nation to protect its sovereignty, citizens, and territorial integrity from external aggression.

Understanding these types significantly impacts how defense strategies, laws, and policies are shaped, ensuring proper responses are developed depending on the scope of the threat. This triad captures the individual aspects of self-defense, the collective responsibilities at the unit level, and the overarching national defense strategies, demonstrating a comprehensive approach to self-defense across different contexts.