Saudi Arabia bombed Yemen's port city of Mukalla after a UAE weapons shipment arrived for separatist forces, warning of "extremely dangerous" Emirati actions. This incident follows tensions over the UAE-backed Southern Transitional Council's advance. The UAE called for restraint and disputed Riyadh's allegations, subsequently announcing a troop withdrawal. The confrontation risks a new front in Yemen's war and strains Saudi-UAE ties, with experts anticipating potential escalation and curtailed arms flow.