Russia believes some NATO members, in particular Poland, want to abandon restrictions on the deployment of nuclear weapons in their countries, which would aggravate “strategic risks” and tensions, Russian foreign ministry spokeswoman Maria Zakharova said.

Russia appears to have been deterred by NATO's firm response last month to incursions into Polish and Estonian airspace, but Moscow is expected to continue testing boundaries, the U.S. general serving as NATO's top commander said on Tuesday.

EXCLUSIVE: A NATO expert has revealed the key sign which proves to him that the alliance, the US and the West are not prepared for a drone war with Russia.

A book by German political analyst Carlo Masala, "If Russia Wins," outlines how Moscow might make a grab for Estonia in 2028.

The Kilo II vessels displace approximately 2,350 tons surfaced and measure roughly 242 feet long with a 32.5-foot beam.

A group of military veterans and defense experts urged European leaders to boost support for green fuels ahead of their summit in Brussels.

Russia may be using the wreck of a Baltic Sea ferry that sank in 1994 for espionage and military exercises, a new report says.

Nato Secretary-General Mark Rutte says pressure and sanctions are changing Vladimir Putin's calculus as Russia deals with heavy military losses in Ukraine as the war continues.