Oil heading westwards by tanker from the Persian Gulf towards the Suez Canal or Sumed Pipeline must pass through the Bab al-Mandab. Located between Djibouti and Eritrea in Africa, and Yemen on the Arabian Peninsula, the Bab al-Mandab connects the Red Sea with the Gulf of Aden and the Arabian Sea. Any closure of the Bab al-Mandab could keep tankers from reaching the Suez Canal/Sumed Pipeline complex, diverting them around the southern tip of Africa. This would add greatly to transit time and cost, and effectively tie up spare tanker capacity. In December 1995, Yemen fought a brief battle with Eritrea over Greater Hanish Island, located just north of the Bab al-Mandab. The Bab al-Mandab could be bypassed by utilizing the East-West oil pipeline. However, southbound oil traffic would still be blocked. In addition, closure of the Bab al-Mandab would effectively block non-oil shipping from using the Suez Canal, except for limited trade within the Red Sea region.