In the early 19th century, one of the founding fathers of modern war studies, the Prussian general and military historian ...

A senior Ukrainian officials says an exchange of prisoners between Russia and Ukraine from their more than three-year war is ...

The U.S. National Security Agency says hackers working for Russian military intelligence tried to access the systems of ...

The Vatican has a deep history of conflict mediation, with varying degrees of success. An effort by the pope to end the war ...

When it comes to the sincerity, or otherwise, of Vladimir Putin’s apparent willingness to talk peace with Ukraine, the ...

In a reversal, President Trump appears to have backed off joining a European push for new sanctions on Russia, seemingly ...

Putin said efforts to end the war were "generally on the right track" and that Moscow was ready to work with Ukraine on a ...

Ukraine will ask the EU next week to consider big new steps to isolate Moscow, including seizing Russian assets and bringing ...

The Russian and Ukrainian positions are far apart, and absent US sticks and carrots, there seems little prospect they will ...

Donald Trump promised voters he'd end the Russia-Ukraine war on Day 1 thanks, in part, to his relationship with Putin. But ...

Kyiv’s European allies slapped new sanctions Tuesday on Moscow, a day after a phone call between U.S. President Donald Trump ...

Two Democrats with national security backgrounds are mulling bids for Congress in toss-up Michigan district, including a ...