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NATO member states need to agree on a clear pathway for Ukraine's membership at the NATO summit, Estonia's Prime Minister Kaja Kallas said on Thursday.
"The only security guarantee that really works, and the cheapest security guarantee that really works is NATO membership", she told reporters ahead of a summit with other EU government leaders in Brussels, adding this can't happen while the war is going on. (Reporting by Marine Strauss, Charlotte Van Campenhout)