U.S. President Donald Trump started the week declaring a diplomatic breakthrough in his bid to prod Moscow and Kyiv closer to peace, announcing he had begun arranging for direct talks between Russia's Vladimir Putin and Ukraine's Volodymyr Zelenskyy.

President Vladimir Putin said on Friday that there was "light at the end of the tunnel" in Russia-U.S. relations and that the two countries were discussing joint projects in the Arctic and Alaska.

Ukrainian officials reported casualties and damage to energy and transport infrastructure, underscoring the continuing intensity of the conflict even as Moscow speaks of compromise.

Military chiefs from the United States and a number of European countries on Thursday presented options to their national security advisers for providing security guarantees to Ukraine, officials sai...

The Pentagon has been quietly blocking Ukraine from using U.S.-made long-range Army Tactical Missile Systems (Atacms) to strike targets inside Russia, limiting Kyiv's ability to employ these weapons ...

Mr. Trump then said he thought Mr. Putin looked “nice” in the photo.