A "Preemptive Strike" is a military strategy where a country attacks an adversary first to prevent an imminent threat. This approach is often used when there is credible evidence that an attack is being planned against them. The goal is to neutralize the threat before it can materialize, thereby ensuring national security. This tactic can be controversial, as it raises ethical and legal questions about the justification for initiating conflict. The concept is often discussed in relation to international relations and defense policies, particularly in the context of nuclear weapons and terrorism.