President Putin in his Wednesday video call with Chinese President Xi Jinping underscored that the last major nuclear treaty with the United States is on the eve of collapse.

New START is set to expire on Thursday. Putin notified Xi that Washington has not yet responded. "As you know, on September 22, 2025, we proposed to the Americans to extend the key quantitative limits for one year as voluntary self-restrictions. However, we have not yet received an official response from the Americans," Putin said, as quoted in state media.

Despite the situation with the New START Treaty, Russia remains open "to seeking negotiated ways to ensure strategic stability" - the Russian leader explained.

Putin further stated his country will act "in a measured and responsible manner, based on a thorough analysis of the overall security situation."

Over several years going back to his first term, Trump has signaled a desire to forge a broader deal which would bring China into the agreement, which hearkens back to the Obama administration. 

Politico is meanwhile reporting that the Trump administration is preparing to "let go of arms control with Russia":

The likely dissolution of the agreement comes at an especially fraught time. Russia and China are expanding their strategic arsenals and the Kremlin has threatened to use nuclear weapons on Ukraine. The Defense Department has held a series of internal meetings in preparation for a post-New START world, according to the two people and another person familiar — all of whom were granted anonymity to discuss internal talks — although it's not clear what was discussed in the meetings.

"We're looking at a very uncertain path ahead," said Daryl Kimball, the executive director of the Arms Control Association. "Unless Trump and Putin reach some sort of understanding soon, it's not unlikely that Russia and the U.S. will start to upload more warheads on their missiles."

The Kremlin has made clear Russia is willing to extend it for another year, to allow more robust negotiations and for a longer deal to be finalized. But again, unless it is renewed or extended at the last minute, the landmark treaty will expire on Thursday, February 5.

Former Russian president Dmitry Medvedev, now deputy chairman of the country's Security Council, on Monday made clear that Russia's offer to quickly extend "remains on the table, and the treaty has not even expired yet, and if the American side wants to extend it, then this can be done."