The Intermediate-Range Nuclear Forces Treaty (INF) was endorsed by American President Ronald Reagan and Soviet chief Mikhail Gorbachev in 1987.
It banned missiles with ranges within 500 and 5,500 km (310-3,400 miles).
However earlier this year the US and Nato accused Russia of breaking the agreement by deploying a unique type of cruise missile, which Moscow has denied.
The Americans stated they’d proof that Russia had deployed numerous 9M729 missiles – recognized to Nato as SSC-8. This accusation was then put to Washington’s Nato allies, which all backed the US claim.
“Russia is solely answerable for the treaty’s demise,” Secretary of State Mike Pompeo mentioned in a statement on Friday.
“With the full help of our Nato allies, the US has determined Russia to be in materials breach of the treaty, and has subsequently suspended our obligations below the treaty,” he added.
Russia’s international ministry confirmed the INF treaty is “formally dead” in a press release carried by state-run Ria Novosti news company.
Back in February, President Donald Trump set the 2 August deadline for the US to withdraw if Russia did not come into compliance.
Russian President Vladimir Putin suspended his country’s obligations to the treaty shortly afterward.