Polish military jets were scrambled due to "the activity of the Russian Federation's long-range aviation" overnight.

Russia is massing troops along NATO's borders and expanding military units while giving them combat experience, creating the backbone of a fighting force.

Trump reportedly disappointed in U.K.'s hesitation on Iran campaign as European allies show mixed support for U.S.-Israel military operations against Tehran.

After signing with the Pentagon, could NATO be OpenAI’s next customer?

Russia continues to add new military units near NATO’s eastern flank, according to a new threat assessment that warns against easing Western sanctions on the Kremlin. More military firepower is how allies can deter potential conflict with Russia, according to the latest annual report by the Lithuanian intelligence service.

In a report published last month, the D.C.-based Atlantic Council identified five Russian attack scenarios Europe must prepare for. Two of the five targets listed are located in the Arctic: the Svalbard archipelago and the Åland Islands.

Canadian Prime Minister Mark Carney plans to visit Norway on Friday where he will observe a NATO exercise before visiting the United Kingdom, his office announced Monday. Carney's office said he will observe the Norwegian-led NATO Cold Response exercise.