B9国家峰会声明：我们坚定支持乌克兰加入北约的承诺。我们将进一步加强限制俄罗斯的努力，准备采取新的欧盟制裁措施。

Group 1 - The B9 countries reaffirm their commitment to support Ukraine's NATO membership [1] - The B9 countries plan to enhance efforts to restrict Russia and are preparing new EU sanctions [1] - The B9 countries consist of Bulgaria, Czech Republic, Estonia, Hungary, Latvia, Lithuania, Poland, Romania, and Slovakia [1]