Russian border guards crossed into Estonia without permission using hovercrafts, authorities in Tallinn have said, in a move ...

President Volodymyr Zelenskyy is aware of the US blocking Ukraine's path to NATO but does not consider it necessary to change ...

European nations are constructing a defensive wall along NATO's eastern frontier as Western intelligence agencies warn Russia ...

Nato countries' pledge to spend 5% of their economic output on defence is Donald Trump's "biggest foreign policy success," ...

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

GOP Rep. Thomas Massie fielded a bill to remove the U.S. from NATO, putting forward a companion measure after Sen. Mike Lee ...

NATO countries, including Canada, are falling behind Russia and China in the development of Arctic-capable drones — uncrewed ...

NATO Secretary General Mark Rutte has delivered one of the clearest signals yet that Ukraine’s path into the alliance is ...

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

NATO militaries currently lack the resilience for a protracted conflict, the alliance’s top maritime commander warned, reinforcing concern that Europe isn’t yet prepared for a long-term confrontation ...

After being blindsided by President Donald Trump’s 28-point plan last month, some Europeans have expressed extreme disquiet at being apparently sidelined in talks.

Ukraine has relinquished its ambition of joining the NATO military alliance in exchange for Western security guarantees as a ...