President Donald Trump said Sunday the U.S. would defend Poland and the Baltic states if Russian aggression were to escalate, following a string of

U.S. allies called an emergency meeting of the United Nations Security Council on Monday after a series of incidents raised alarm about growing Russian threats to Europe.

Multiple Russian drones crossed into Poland in what European officials described as a deliberate provocation, causing NATO to send fighter jets to shoot them down.

Russia and NATO are currently in the most open confrontation since the collapse of the Soviet Union ended the Cold War — but only one side seems to be acknowledging it. The incursion of 21 Russian drones into Polish airspace on Sept.

NATO allies Poland and Romania both scrambled fighter jets to respond to Russian drone and missile attacks in Ukraine on Saturday.

A swarm of Russian drones flew last week into Poland in what officials there regarded as a deliberate provocation.

Poland’s foreign minister has suggested that NATO states should consider imposing a no-fly zone over Ukraine to protect the alliance’s territory and people from Russian drones.