EU leaders agree to open membership talks with Ukraine despite Russian invasion; Hungary opposes 50 billion euro financial aid package. Leaders bypass objections from Hungarian PM Viktor Orban but fail to revamp EU budget for Ukraine's financial support. Talks on the financial package end without a deal, to be resumed in January. Ukraine closer to its goal of anchoring itself in the West. German Chancellor plays key role in getting Orban to leave the room. Membership talks with Moldova and candidate status for Georgia also agreed.