ÉVIAN, France—U.S. President Donald Trump arrived in France on June 15 to participate in the annual G7 summit. His visit comes just hours after he announced that the United States had reached a deal with Iran to end the conflict following weeks of intense negotiations. Leaders of the world’s seven largest advanced economies are gathering in the French spa town of Évian-les-Bains from June 15 to June 17 for the summit. Trump is expected to meet with French President Emmanuel Macron shortly after his arrival, followed by an official greeting and a working dinner with all leaders. The G7 comprises the United States, the UK, Canada, France, Germany, Italy, and Japan....