Estonian President Alar Karis said on Tuesday, June 9, that a potential window for negotiations to end Russia’s war against Ukraine could open this summer and urged Europe to prepare for that possibility. Speaking at a joint press conference with Ukrainian President Volodymyr Zelensky, Karis said any future peace talks must involve all parties to the conflict and rejected the prospect of separate negotiations.JOIN US ON TELEGRAMFollow our coverage of the war on the @Kyivpost_official. “It is quite likely that there will be a window of opportunity this summer,” Karis said. “We must prepare for that moment already today. We can continue to pressure Russia and use diplomatic channels so that Russia also comes to the negotiating table and ends the war, because the goal is to end the war.” Europe must be ready Karis said Europe should participate in any future negotiations if Ukraine wants European involvement. He also said US participation would be beneficial if talks move forward. “There will be no separate negotiations without all sides of the conflict,” the Estonian leader said. His comments come as diplomatic efforts to end the war continue amid ongoing fighting and Russian attacks across Ukraine. Estonia remains one of Ukraine’s strongest supporters Estonia has been among Ukraine’s most vocal supporters since the start of Russia’s full-scale invasion, consistently backing military aid, sanctions against Moscow and Ukraine’s future integration into European institutions.