The EU and Britain announced new sanctions against Russia on Tuesday without waiting for the United States to join them, a ...

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

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

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

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

Russia and Ukraine will "immediately" begin ceasefire negotiations, President Donald Trump said Monday after separate calls ...

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 ...

Diplomatic efforts have produced little progress in halting the fighting, including Monday's phone call between Trump and ...

Lindsey Graham's push to sanction Russia continues to earn bipartisan support in the Senate, even as President Donald Trump ...