The move by Houthi rebels- belonging to an offshoot of Shiite Islam- from the north of Yemen to Sanaa and then to Taiz and Aden in the south of Yemen draws a Saudi response. Yemen borders Saudi Arabia in the south. The Saudis launch airstrikes on Houthi targets in Yemen. The Persian Gulf states, Turkey, Egypt, Jordan, Morocco and Pakistan support the Saudis, creating the potential for a wider sectarian conflict in the region. The withdrawal of U.S. influence in the region under the Obama administration leads to the collapse of the Arab Spring, the Saudis pursuing an independent foreign policy, the rise of Islamic State militants, Turkey following its own policy, emboldening Iran in extending its influence in the Middle East, and creating a situation of wider sectarian Sunni-Shiite conflict throughout the Middle East. It creates a situation in which the U.S. is involved on the Iranian side in support of the government in Baghdad supported by Iran against Islamic State militants, and at the same time on the side of the Sunni coalition in Yemen as the U.S. withdraws from drone bases in Yemen. At the same time the Obama administration finds itself distancing itself from Israel as it negotiates alongside France and Britain with Iran on a nuclear agreement....