'That's a WORLD WAR when Americans and Russia start shooting at one another': Biden tells US citizens to leave Ukraine now because things could 'get crazy quickly' and Russia 'isn't just a terrorist organization' President Joe Biden on Thursday told Americans to leave Ukraine immediately He told NBC News they would not be rescued by US troops if Russia invaded 'That's a world war when Americans and Russia start shooting at one another' The interview will be released in full on Sunday, before the Super Bowl Russia began exercises with Belarus on Thursday, raising tensions further By Rob Crilly, Senior U.S. Political Reporter For Dailymail.Com Published: 23:27 GMT, 10 February 2022 | Updated: 23:27 GMT, 10 February 2022 Viewcomments President Joe Biden on Thursday told Americans to leave Ukraine immediately, warning them that they could not expect to be rescued by U.S. troops if Russia launched an invasion. 'American citizens should leave now,' Biden said in an interview with NBC News. 'It's not like we're dealing with a terrorist organization. We're dealing with one of the largest armies in the world. It's a very different situation and things could go crazy quickly.' Russia has amassed some 120,000 troops close to the Ukrainian border, triggering fears of an invasion. Extra American troops have been deploying to NATO allies in the region but Biden said he could not imagine any circumstances where they were sent to help Americans leave the country. 'There's not,' he said. 'That's a world war when Americans and Russia start shooting at one another. 'We're in a very different world than we've ever been.' Tensions ramped up further on Thursday as Russia held military exercises in Belarus and the Black Sea, prompting Britain to declare it as the 'most dangerous moment.' President Joe Biden again urged Americans to leave Ukraine on Thursday, this time warning them that American troops won't come to the rescue if Russia launches an invasion Ukraine also staged war games and a senior U.S. official warned that 'bodybags will come back to Moscow' if Russian troops crossed the border. It leaves world leaders hoping diplomacy can still win the day and prompt President Vladimir Putin to back down. An diplomatic source told DailyMail.com that the intelligence community did not believe that Putin intended to invade, but he still needed a way out that would allow him to save face. In the interview, which will be broadcast in full before Sunday's Super Bowl, Biden said he believed that if Putin was 'foolish enough to go in, he’s smart enough not to, in fact, do anything that would negatively impact on American citizens.' He also discussed his search for a Supreme Court nominee, after Justice Stephen Breyer said last month he was retiring. 'What I've done is I've taken about four people and done the deep dive on them, meaning ... thorough background checks,' he said. He has already promised to nominate the first black woman to the Supreme Court. On indoor mask mandates, the other big story of the day, Biden suggested it may be too soon to lift the requirement for face coverings in federal government offices and public buildings. He has found himself increasingly out of step with public opinion and Democratic governors in California, Connecticut, Delaware, New Jersey, New York, Nevada and Oregon who announced this week that they were easing or ending mandates. 'I've committed that I would follow the science as put forward by the CDC [Centers for Disease Control and Prevention] and federal people and I think it’s probably premature, but it’s, you know, it’s a tough call,' he said. Share or comment on this article: All rights reserved for this news site (dailymail) and under his responsibility