European leaders are showcasing a united front to support Ukraine at a pivotal summit in London, vowing to back President Zelenskyy while navigating the complexities created by a contentious meeting between Zelenskyy and former President Trump. The UK, along with France, is drafting a peace plan aimed at presenting to the US, with a focus on establishing a coalition of willing nations to ensure security guarantees for Ukraine. As calls for increased military support, including a significant $2 billion deal for air-defense missiles, echo through the summit, leaders acknowledge the urgency of navigating post-White House tensions to maintain US involvement in Ukraine negotiations. Despite the challenges, European officials are determined to take the lead in shaping a resolution to the ongoing conflict.