We will get them Patriots, which they desperately need.” With these words, President Donald Trump signaled not just a reversal in his administration’s Ukraine policy, but a pivotal moment for the future of transatlantic security and the architecture of modern warfare.

Donald Trump privately urged Ukraine to strike targets deep inside Russia, including Moscow, if supplied with advanced US weapons, signalling a pivotal policy shift in the war and raising stakes for Nato and Kremlin escalation.

In announcing a new weapons package for Ukraine and a ceasefire deadline for Putin, President Trump reversed his previous stance towards Russia’s invasion. But will the weapons have the intended effect for Ukraine,

Trump's moves underline his growing disenchantment with Russian President Vladimir Putin over the lack of progress in U.S.-led efforts to secure a ceasefire.

In a major shift toward Ukraine, Trump announces a plan to send weapons, including Patriot systems, and threatens 100 percent tariffs if Russia doesn’t reach a deal soon.

New provisions in the National Defense Authorization Act aim to prevent unilateral Pentagon decisions on Ukraine aid after Trump's oscillating support and sudden aid withdrawals.

President Donald Trump has finally found a way to like arming Ukraine: ask European allies to donate their weapons, and sell them American replacements.

President Donald Trump’s envoy to Ukraine and Russia, retired Lt. Gen. Keith Kellogg, has arrived in Kyiv. Ukrainian officials confirmed the visit on Monday, highlighting discussions on defense, security,

Will Vladimir Putin back down? What should Trump's next move be? And what does the future hold for Ukraine? Newsweek contributors Daniel R. DePetris and Dan Perry debate: Daniel R