Yemen’s Houthi militia gained control of the strategic port city of Mokha (also spelled Mocha) on Thursday, escalating tensions and raising concerns about a return to full-scale civil war in the country. The capture of Mokha, a vital Red Sea port, represents a significant gain for the Houthis and challenges the existing fragile peace efforts. This development comes after months of relative calm following a UN-brokered truce. Control of Mokha allows the Houthis to potentially disrupt vital shipping lanes and increases their leverage in potential negotiations. International observers are expressing alarm, fearing the escalation could worsen the humanitarian crisis in Yemen, which has already been ravaged by years of conflict. The seizure of the city prompts fears of further clashes between the Houthis and the internationally recognized government, supported by a Saudi-led coalition.