乌克兰总统泽连斯基：与欧洲讨论了防空、武器采购以及针对俄罗斯的制裁。

Group 1 - The core focus of the article is on Ukrainian President Zelensky's discussions with Europe regarding air defense, arms procurement, and sanctions against Russia [1] Group 2 - The discussions emphasize the importance of enhancing Ukraine's air defense capabilities in light of ongoing conflicts [1] - The procurement of weapons is a critical aspect of Ukraine's strategy to bolster its military strength [1] - The article highlights the ongoing efforts to impose sanctions on Russia as a means to counter its actions [1]