'Situation is very, very grave': EU's new chiefs visit Ukraine on first day of mandate

The EU's new top officials Kaja Kallas and Antonio Costa visited Kyiv to reaffirm support for Ukraine amid Russia's ongoing invasion. With Trump potentially cutting US aid, the EU aims to stress Ukraine's strategic importance. Ukraine seeks Nato security assurances, while the EU pushes for strong negotiation positioning. European and US contributions are vital as the conflict poses broader geopolitical risks.