What are the implications of President Trump's peace negotiation efforts between Russia and Ukraine for European security and international diplomacy?

President Trump's recent diplomatic initiatives to end the Ukraine war through direct conversations with Putin and Zelenskyy have significant implications for European security architecture. European capitals are reportedly caught off-guard by Trump's announcement of immediate negotiations, highlighting potential tensions between US and European approaches to the conflict. The negotiations raise complex questions about Ukraine's NATO membership prospects, territorial recognition of occupied regions, and whether Ukraine might be marginalized in discussions about its own future. This diplomatic development underscores the challenging dynamics between American leadership in crisis resolution and European strategic interests in regional stability.