Aden is a port city in Yemen located on the Gulf of ADEN, which connects the Red Sea to the Indian Ocean. Aqaba is a port city in Jordan located on the Gulf of Aqaba, which connects the Red Sea to the Mediterranean Sea. Yemen is a country located in the Arabian Peninsula, bordered by SAUDI Arabia and OMAN. OMAN is a country located in the Arabian Peninsula, bordered by Yemen and SAUDI Arabia. SAUDI Arabia is a country located in the Arabian Peninsula, bordered by Yemen and OMAN. All five of these locations are important seaports in the region of Arabia.