NATO is launching a new military campaign in Poland following an incursion by Russian drones in Polish airspace earlier in the week, the military alliance confirmed in a statement.

Japan—a key United States ally—sent its air force to North America and Europe to strengthen cooperation with NATO amid threats from Russia, China and North Korea. Newsweek has emailed the Russian and Chinese foreign ministries for comment.

The consultations at NATO headquarters were part of a regular meeting of ambassadors from the alliance's 32 member states known as the North Atlantic Council, but Polish Prime Minister Donald Tusk told Parliament that they came under Article 4 of the treaty that founded NATO in 1949 in the aftermath of World War II.

NATO fighter jets shot down multiple Russian drones that violated Polish airspace during an attack on neighboring Ukraine early on Wednesday, as the military alliance denounced Moscow for “absolutely dangerous” behavior that ratcheted up tensions to a new level.

The head of the Russian Security Council, Dmitry Medvedev, has made new threats of war with NATO. The head of Ukraine's Presidential Office, Andriy Yermak, responded to his words. What Medvedev said Medvedev threatened that granting NATO countries the right to shoot down Russian drones over Ukraine would lead to war between the Alliance and

NATO countries are "at war with Russia" over Ukraine, the spokesman for Russian President Vladimir Putin has said. "NATO is at war with Russia," Dmitry Peskov told Russian state media on Monday. "This is obvious,