In foreign policy,the Bush Doctrine refers to

A) managing the war on terrorism through multination diplomacy.
B) the tactic of relying on the United Nations to help achieve U.S.objectives.
C) increasing the size and scope of NATO forces.
D) preemptive war.

The Bush Doctrine is centered around the idea of preemptive war, in which the United States reserves the right to use military force against perceived threats, even if an attack is not imminent. This was famously put into practice during the Iraq War, in which the United States invaded Iraq without a direct provocation, on the grounds that Iraq was believed to possess weapons of mass destruction that posed a threat to American security. The Bush Doctrine represented a departure from traditional American foreign policy, which had primarily relied on deterrence and containment.