U.S. President Joe Biden will seek a five-year extension to the New START arms control treaty with Russia, the White House said on Thursday, in one of the first major foreign policy decisions of the new administration ahead of the treaty’s expiration in early February.

"The President has long been clear that the New START treaty is in the national security interests of the United States. And this extension makes even more sense when the relationship with Russia is adversarial as it is at this time," White House press secretary Jen Psaki said in a briefing.