President Trump said Ukraine might be able to reclaim all its lost territory in the war against Russia. He previously said NATO countries should shoot down military aircraft that enter their airspace.

Kremlin spokesman Dmitry Peskov rejected Estonia's accusations that Russian fighter jets entered its airspace.

Estonia and its allies launched a blistering criticism of Russia for flying fighter jets through its airspace last week, calling Moscow out at an emergency meeting of the UN Security Council on Monday and accusing it of “reckless” and “outrageous” behavior.

President Donald Trump said Tuesday he believes NATO member countries should shoot down Russian aircraft if they enter their airspace as the defense alliance confronts the potential for an expansion of the war in Ukraine.

The US president's comments, posted on social media, come after he spent an hour meeting Ukrainian President Volodymyr Zelensky at the UN General Assembly Edited by Brandon Livesay and Caitlin Wilson,

The US president answered "yes I do" when asked whether he would support such action shortly after he addressed the UN General Assembly.

Estonia is set to ask NATO allies for extra air-defense assistance over the Baltic Sea as the alliance’s eastern members try to respond to the third violation of NATO airspace this month by Russia.

President Trump also said in a Truth Social post that Ukraine can win back all of its lost territory from Russia, signaling a major shift in his stance on the war.