Russia's President Vladimir Putin has signed a law that suspends Russia's participation in a major European arms treaty.
Beginning next month, Russia will no longer take part in the Conventional Forces in Europe treaty. The pact limits deployment of tanks, aircraft and other heavy weapons across the continent.
Putin had called for Russia to pull out of the agreement amid anger over U.S. plans to build a missile-defense system in Eastern Europe.
By suspending the treaty, Russia will not be obligated to limit the number of conventional weapons it deploys west of the Ural Mountains. It also won't have to let NATO delegations inspect Russian military sites.
The treaty was put in place in 1990 to ease tensions along the border between the old Eastern bloc and Western Europe.