Russian drones entered Polish airspace in the early hours of Wednesday in what authorities in Warsaw called a serious act of aggression.
The Polish military command announced that drones had repeatedly violated the airspace of the NATO member state during a wave of attacks in western Ukraine, but that these violations had ended.
The objects were reportedly shot down by Polish armed forces, marking the first time a NATO member has directly engaged Russian assets on its territory since the start of the war.
The Prime Minister of Poland, Donald Tusk, said:
"NATO airspace was violated by a large number of Russian drones. Those that posed a threat were shot down by Polish NATO pilots. This is likely a large-scale provocation by Moscow. This is the first time that Russian drones have been shot down over the territory of a NATO member state. Our allies are taking the situation very seriously."
Donald Tusk says Poland is closer to armed conflict than ever since World War II.
He adds that Warsaw has sought to use NATO's Article 4, which would formally bring an urgent matter to the North Atlantic Council.
Article 4 of the North Atlantic Treaty allows any member country to request consultations with other allies if it believes their “territorial integrity, political independence or security” is threatened, initiating discussions within the North Atlantic Council to address the concern and potentially lead to joint decisions or actions, but it is not a military response.
It serves as an essential mechanism for preventive diplomacy and consultation, distinct from Article 5 collective defense, and has been invoked several times in NATO's history, notably by the Baltic states and Poland following Russia's invasion of Ukraine in 2022.
The Polish armed forces say Russian drones have been 'downed', the first time the NATO country has directly engaged Russian assets in its airspace since the start of the war in Ukraine in 2022.