US President Joe Biden has assured Poland of NATO’s support amid Russia’s continuing war on Ukraine, in comments made to Polish President Andrzej Duda on the second day of his visit to the country. “We consider Article 5 a sacred obligation, and you can count on that,” Biden told Duda in Warsaw as the two met for bilateral talks on Russia’s invasion of Ukraine. Biden said he thought Russian President Vladimir Putin was counting on being able to divide NATO’s eastern flank from the West, but that he had failed to so. Duda welcomed Biden to the presidential palace in Warsaw where they were joine…