President Donald Trump said Tuesday that NATO allies should shoot down Russian aircraft if they enter alliance airspace, as tensions rise over recent air violations in Eastern Europe. Trump made the comments during a meeting in New York with Ukrainian President Volodymyr Zelenskyy on the sidelines of the United Nations General Assembly, Sky News reported. When reporters asked him if NATO should act if Russian aircraft cross into allied airspace, Trump responded, "Yes, I do," but added that U.S. support in such operations would "depend on the circumstances." The meeting between Trump and Zelenskyy struck a notably warm tone, with Trump calling the Ukrainian leader "a great man" and praising Ukraine's resistance against Russia. Days earlier, about 20 Russian drones entered Polish airspace, prompting NATO aircraft to intercept and shoot some of them down.