The Saudi-led coalition fighting Shiite rebels in Yemen doubled its near-daily airstrikes Monday in the central province of Marib and the adjacent border area of Jawf, in order to allow allies on the ground to push north toward insurgent strongholds, authorities said. Marib’s pro-government forces also received major reinforcements, including hundreds of Saudi-trained troops, ambulances and armored personnel carriers manned by Saudi and Emirati soldiers, pro-government officials said. The forces aim to take Saada, the main northern stronghold of the Houthi rebels, they added. Yemen’s conflict pits the Iran-allied Houthis and troops loyal to former President Ali Abdullah Saleh against an array of forces including southern separatists, local and tribal militias, Sunni Islamic militants as well as troops loyal to President Abed Rabbo Mansour Hadi. Pro-government forces recently pushed the Houthis out of several key southern areas. Meanwhile, in Yemen’s third-largest city, […]