Originally posted by the Voice of America. Voice of America content is produced by the Voice of America, a United States federal government-sponsored entity, and is in the public domain. US to Offer Russia 5-year Extension on Nuclear Treaty VOA News WASHINGTON - The new administration of U.S. President Joe Biden is planning to offer Russia a five-year extension of a nuclear arms treaty that is set to expire February 5, U.S. officials said Thursday. Biden national security adviser Jake Sullivan was set to make the offer to Russia's ambassador to the U.S., Anatoly Antonov, on Thursday afternoon, one official said. .