Christopher Henzel is the United States ambassador to Yemen. Until April, 2019 he was chargé d’affaires ad interim at the American Embassy in Riyadh. Mr. Henzel has spent most of his career specializing in the Muslim world. In recent years he headed the provincial reconstruction office in Mosul, Iraq; was deputy chief of mission in Manama, Bahrain; and served as counselor for political affairs in Amman, Jordan. His earlier overseas postings included an assignment in Yemen from 1997 to 1999. In Washington, he has worked on Israeli and Palestinian affairs, budgeting for U.S. assistance for the Near East region, on Egyptian and Maghreb economic affairs, and as desk officer for Iran. He studied Arabic in Tunisia.