"Recently at a meeting [of the committee], the US stated that Russia is preparing for war. Yes, Russia is preparing for war, I can confirm it," Belousov said after a failed UN First Committee vote on Russia's resolution in support of the INF.
"We are preparing to defend our homeland, our territorial integrity, our principles, our values, our people — we are preparing for such a war," he added.
However, he underscored it is not Russia that is preparing to start the war. According to the diplomat, there is a big difference between Moscow's preparations and Washington's.
"Linguistically, this difference is in just one word, both in Russian and in English: Russia is preparing for war, and the US is preparing a war," Belousov said. "Otherwise, why would the United States withdraw from the treaty, build up its nuclear potential [and] adopt a new nuclear doctrine?"
Belousov, commenting on the failed UN committee vote on Russia's draft resolution, warned that refusal to introduce the draft could seriously affect world security.
"If the United States comes out of the treaty and starts building up its nuclear potential in an uncontrolled manner, we will face another reality," he said, adding that the procedural issues the UN focused on in recent days will seem insignificant.
The INF Treaty is a Cold War-era pact signed by then-leader of the Soviet Union Mikhail Gorbachev and then-US President Ronald Reagan in 1987. The two sides reached a historic agreement to cut their nuclear arsenals and pledged to destroy all cruise or ground-launched ballistic missiles with ranges between 310 and 3,400 miles.