Article 4 allows member states to start a formal discussion within the alliance about threats to their security. It does not commit the alliance to military action.

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.

NATO is preparing a defensive military response to the drone incursion in Poland to strengthen deterrence across the alliance’s eastern flank, according to a person familiar with the matter.

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.

President Donald Trump may meet with Ukrainian President Volodymyr Zelenskyy at U..N summit as NATO faces pressure to enforce no-fly zone over Ukraine.

Poland has urged NATO to impose a no-fly zone over Ukraine after Russian drones breached Polish and Romanian airspace, sparking allied reinforcements.

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

NATO member Poland will not hesitate to shoot down objects that violate its airspace and pose a threat, but will take a more cautious approach to situations that are less clear-cut, the prime minister said on Monday.