US President Joe Biden gave his full backing to applications by both Finland and Sweden to join NATO during a visit by the leaders of both countries to the White House on Thursday. “This is in my view and the view of our team a momentous day. It’s a very, very good day. Today, I’m proud to welcome and offer the strong support of the United States for the applications of two great democracies,” he told a White House news conference held with Finnish President Sauli Niinistö and Swedish Prime Minister Magdalena Andersson. “Having two new NATO members in the high north will enhance the security o…