<h1>Foreign ministry summons U.S. ambassador over letter accusing host of failing to curb antisemitism, raising diplomatic tension risks</h1> A foreign ministry summoned the United States ambassador after the envoy sent a letter to the French president alleging insufficient action against rising antisemitism. France called the allegations 'unacceptable,' asserted they violated international law by interfering in internal affairs, and treated the summons as a formal diplomatic protest. The U.S. State Department publicly defended the ambassador. The incident reflects use of established diplomatic remedies (persona non grata or formal recall risk) to register displeasure and may exacerbate bilateral tensions given existing disputes over trade, peacekeeping and security policy, potentially prompting diplomatic negotiations to contain fallout.