The Houthis’ entry could further hurt global shipping if they again target vessels in the Bab el-Mandeb Strait off the Red Sea. DUBAI, United Arab Emirates (AP) — Iranian-backed Houthi rebels entered the month-old war in the Middle East on Saturday, claiming two missile launches at Israel. About 2,500 U.S. Marines arrived in the region. And Pakistan’s government said that regional powers plan to meet Sunday to discuss how to end the fighting. The war has threatened global supplies of oil and