Saudi-led coalition jets bombed a military installation in southern Yemen on Tuesday as local tribes battled Shiite rebels and their allies in the area, seizing a makeshift camp and weapons, Yemeni military officials said. The Saudi-led campaign, which supports Hadi, now in its 13th day, has so far failed to stop the Houthis’ advance on Aden — Yemen’s second-largest city, which was declared a provisional capital by Hadi before he fled the country to Saudi Arabia.