The U.S.’s call for Europeans to spend more on militaries prompts talk of changing the rules for what counts as military ...

The Lightning II fighter jet remains the most successful fifth-generation program; however, geopolitical tensions among NATO ...

President Donald Trump has repeatedly threatened to leave the NATO alliance should member states fail to increase defensive ...

The secret guidance gives an insight into the United State's likely approach to supporting Europe in the event of Russian ...

The Trump Administration sent Ukraine its new proposed text for a much-anticipated minerals deal on March 28, and ...

US Secretary of State Marco Rubio is to attend a meeting of NATO foreign ministers in Brussels, where they will discuss, ...

NATO Secretary-General Mark Rutte warned the United States and Europe on Wednesday against any temptation to "go it alone" on ...

Russia first annexed Crimea from Ukraine in 2014 and invaded parts of the country's Russian-speaking east to stop its ...

The split between Europe and the United States over how to end the war is exposing a new, disorienting reality for an ...

The administration of US President Donald Trump is considering abandoning NATO's command in Europe. For almost 75 years, the ...

Finnish President Alexander Stubb said U.S. President Donald Trump had become impatient with Russia over a Ukraine ceasefire.

When Belgium's Willy Claes took over as NATO secretary general in 1994, Bill Clinton was US president, the Cold War had ended ...