December 13, 2001 (October 29), Government House, the United States announced its withdrawal from the ABM Treaty.

2001 12 13, 2009, in the Rose Garden of the White House, U.S. President George W. Bush formally announced, the United States withdrew from the Anti-Ballistic Missile Treaty signed with the former Soviet Union in 1972, the move to the big country strategic relationships, international arms control and disarmament regime and international security posed by the far-reaching impact. Since the beginning of the year since he took office, the Bush administration has repeatedly emphasized, the ABM Treaty is a legacy of the Cold War, the United States to move beyond the ABM Treaty, and seeking to develop and deploy a missile defense system legalization. For this reason, since May, the United States launched a diplomatic offensive of missile defense, trying to persuade Russia to withdraw from the ABM treaty with the United States. Although the Russian stance relaxed, and intends to modify the Anti-Ballistic Missile Treaty with the United States, but the United States chose to denunciation, its policy of unilateralism withdraw from the ABM treaty issue has reached a new height.
in the past 30 years, "the Anti-Ballistic Missile Treaty in order to ensure the world's strategic stability made a significant contribution, but also one of the important foundation of the international arms control and disarmament agreements. Maintain the stability of the international arms control and disarmament system after the United States announced its withdrawal from the ABM Treaty, as well as the reconstruction of the strategic cooperation between the great powers, to prevent the world once again into the nightmare of the arms race, has become a major challenge facing the international community.