The world reacts to President Donald Trump’s address to Congress. A look at the impact of halting military aid to Ukraine and what it means to Kyiv. Russia is watching closely as the American relationship with Europe changes. Tariffs on imports into the United States are now in place, and the Supreme Court deals a defeat to Trump in his bid to cut foreign aid spending.…

Ukraine's armed forces have spent three years learning how to wage a modern drone war. And the country's top drone commander says it's a kind of combat the armies of NATO are not yet prepared to fight and need to be. We talk to Stephen Biddle Professor of International and Public Affairs, Columbia University and Adjunct Senior Fellow for Defense Policy, Council on Foreign Relations.…

Now that President Donald Trump has suspended military aid to Kyiv, Europe must decide how to handle security for itself and Ukraine. A look at trade tariffs imposed by Trump. Negotiations in Cairo for a Gaza rebuilding plan as Israel is preventing aid from entering the area. Plus, academic exchanges between the U.S. and China amid growing hostility.…