The US is preparing to officially back out from a nuclear treaty with Russia.
US President Ronald Reagan and Soviet leader Mikhail Gorbachev signed the Intermediate-Range Nuclear Forces Treaty (INF) back in 1987.
Under the agreement, both dies were not allowed to possess missiles that had a firing range of between 500 and 5,500 km.
However in recent months the US along with NATO (the North Atlantic Treaty Organization) say Russia has violated the treaty.
This is an accusation that Moscow has firmly denied.
On Friday the USA formally withdrew from the pact while Vladamir Putin also said Russia has suspended its obligations to the pact.
The development has sparked fears of a new arms race between the two superpowers.

No evidence alleged Bondi gunmen received military training in Philippines
At least 12 killed in Nigeria mining site attack
Russian attack on Ukraine's central Cherkasy injures six, causes blackouts
UN, aid groups warn Gaza operations at risk from Israel impediments
Israel approves natural gas deal with Egypt, Netanyahu says
US approves $11.1 billion largest-ever arms package for Taiwan
Trump adds seven countries to full travel ban list
Indian parliament votes to allow private firms in nuclear power sector
