According to the Kremlin, Putin embarked a build up of Russia's nuclear capabilities because of U.S. President George W. Bush's decision to withdraw from the 1972 Anti-Ballistic Missile Treaty. Most analysts agree that Russia's nuclear strategy under Putin eventually brought it into violation of the 1987 Intermediate-Range Nuclear Forces Treaty. Because of this, U.S. President Donald Trump announced the U.S. would no longer consider itself bound by the treaty's provisions, raising nuclear tensions between the two powers. This prompted Putin to state that Russia would not launch first in a nuclear conflict but would "annihilate" any adversary. Russians killed in such a conflict "will go to heaven as martyrs". Most military analysts believe Russia would consider launching first if losing a major conventional conflict as part of an 'escalate to de-escalate' strategy that would bring adversaries to the negotiating table.