President Donald Trump has said the US will pull out of a nuclear treaty with Russia because Moscow has violated the agreement.
The 1987 Intermediate-Range Nuclear Forces Treaty helps protect the security of the US and its allies in Europe and the Far East.
It prohibits the US and Russia from possessing, producing or test-firing a ground-launched cruise missile with a range of 300 to 3,400 miles.
Mr Trump made the announcement during a campaign stop in Elko, Nevada, on Saturday.
“We are going to terminate the agreement and then we are going to develop the weapons,” he said, unless Russia and China agree to a new deal.
It comes as National Security Adviser John Bolton was set to travel to Russia, Azerbaijan, Armenia and Georgia on Saturday.