EU leaders debate migration policy and potential enlargement amid Russia's war in Ukraine

EU leaders clashed over migration policy at a summit in Spain, with Poland and Hungary opposing burden-sharing.
EU pledged support for Ukraine but faces challenges over the process and timing of its membership bid.
EU considering membership for Western Balkan nations and Moldova but enlargement rules pose hurdles.
EU struck a deal on processing centers at borders to screen migrants but faces division on distribution.
EU aims to expand bloc of democracies but needs internal reform before adding new members.