text:  Russia must understand that they're not able to wait those out. They need to sit down and accept a solution where Ukraine prevails as a sovereign, independent nation. One of the decisions expected at the summit is to put NATO in charge of coordinating training of Ukrainian soldiers and delivery of weapons to Ukraine. This has been informally described as Trump-proofing Ukrainian assistance as the U.S. presidential election nears, and Donald Trump has pledged to cut off aid to Kyiv. For NPR News, I'm Terry Schultz in Brussels.