US Undecided About Extending Nuclear Arms Control Treaty With Russia

Undersecretary of State Andrea Thompson attends a panel discussion after the Treaty on the Non-Proliferation of Nuclear Weapons (NPT) conference in Beijing on Jan. 31, 2019. Thomas Peter/AFP/Getty Images

The United States has not made a decision about extending a key nuclear arms pact with Russia, a senior Trump administration arms control official told lawmakers on May 15.

The New Strategic Arms Reduction Treaty (New START), which came into effect in 2011, is set to expire in February 2021. The treaty capped the number of missiles, bombers, warheads, and launchers the two nations can possess.