What are the concerns about U.S. peace initiatives for the Russia-Ukraine war?

European leaders are expressing significant concerns about U.S. peace initiatives regarding Russia's invasion of Ukraine. They worry that the Trump administration may not have Ukraine's best interests in mind during these rapidly developing talks. This skepticism comes as U.S. officials meet in Saudi Arabia and U.S. General Keith Kellogg conducts three days of meetings with President Zelensky in Kyiv. Meanwhile, U.S. military presence continues to serve as a deterrent against Russian aggression along Europe's eastern flank, particularly in countries like Poland and Estonia. Despite these diplomatic efforts, the war that has been ongoing for nearly three years continues to rage on, highlighting the complex balance between peace negotiations and maintaining a strong defensive posture.