Putin to suspend Russia participation in New START Treaty, last nuclear arms control pact with US

Russia President Vladimir Putin said Tuesday his country will suspend its participation in the New START Treaty, the last remaining nuclear arms control agreement between the Kremlin and the United States.

In his state of the nation address, Putin said that Russia would not yet fully withdraw from the treaty, which was signed by Russia and the U.S. in 2010 to cap the number of deployable long-range nuclear warheads and limit the use of atomic missiles, according to the Associated Press.

Putin also said Russia must be ready to resume nuclear weapons testing if the United States does.