德媒：欧洲领导人警告美国“可能会背叛”乌克兰和欧洲

Group 1 - The core viewpoint of the article is that European leaders, including those from Germany, France, and Ukraine, have expressed concerns that the United States may "betray" Ukraine and Europe during a recent conference call [1] Group 2 - The article highlights the involvement of multiple European leaders in the discussion, indicating a collective concern regarding U.S. foreign policy towards Ukraine [1] - The warning reflects the growing anxiety among European nations about their reliance on the U.S. for support in the ongoing conflict involving Ukraine [1] - The mention of a "betrayal" suggests a potential shift in U.S. commitment, which could have significant implications for European security and geopolitical stability [1]