European nations are constructing a defensive wall along NATO's eastern frontier as Western intelligence agencies warn Russia could be militarily capable of attacking the alliance within five years. To assist with the construction of defensive works,

With peace in Ukraine still elusive, progress from U.S. initiatives have officials discussing a postwar security landscape.

NATO fighter jets were scrambled and air defense systems put on alert in Poland in response to Russia’s latest overnight drone and missile strikes in Ukraine.

NATO Secretary General Mark Rutte warned Thursday that members of the alliance could be “Russia’s next target,” calling for a rapid rise in defense spending to prevent a war similar to those seen by past generations.

NATO countries, including Canada, are falling behind Russia and China in the development of Arctic-capable drones — uncrewed aerial and land vehicles that are ideal for surveillance.

NATO chief Mark Rutte warned members of the military alliance must treat the threat posed by Moscow more urgently as they may be "Russia's next target."

Secretary-General Mark Rutte chastised some allies for moving too slowly when it comes to ramping up defense spending.

Former Swedish Foreign Minister Tobias Billström said after the Ukraine war, Europe must be ready for further Russian aggression.

NATO Secretary General Mark Rutte issued a stern warning to the organization’s allied nations on Thursday, suggesting they stand as “Russia’s next target” after Ukraine. Rutte delivered the sobering message that NATO countries are “already in harm’s way” during a keynote address at a Berlin event hosted by the Munich Security Conference.

The Kremlin said on Sunday that NATO Secretary General Mark Rutte's remarks about preparing for war with Russia were irresponsible and showed that he did not really understand the devastation wrought by World War Two.

The Kremlin has described Ukraine’s push to join NATO as one of the “root causes” of the conflict. Russia sees an expanding NATO as a major security threat. But NATO’s expansion into the Baltics and other post-Soviet states is driven by a fear that Moscow would one day invade and try to fold them back under its control—as seen in Ukraine.