The long-range missiles provided by the United States and Britain were used to strike inside Russian territory, despite concerns that their use would escalate the conflict. Kyiv’s stockpiles are running out.

Ukraine was granted permission to fire Western long-range missiles at Russian military targets a month ago, but it has since slowed their use due to a shortage of missiles. The missile strikes have had limited success,

Russia's point man for arms control cautioned Donald Trump's incoming administration against resuming nuclear testing, saying Moscow would keep its own options open.

Deputy Foreign Minister of the Russian Federation Sergei Ryabkov said American policy is "extremely hostile" toward Russia.

Is the world nearing a nuclear showdown? Russia has issued a dire warning to the U.S., raising concerns about the future of the Comprehensive Nuclear Test Ban Treaty. Russian Deputy Foreign Minister Sergei Ryabkov has called U.