Oman and Saudi Arabia.
Saudi Arabia and Oman
Yemen, Somalia, and Djibouti border the Gulf of Aden.
the U.S and Mexico border the west indies i think:)
The Democratic Republic of Congo and Germany, only counting land borders.
Bolivia and Paraguay are the two landlocked countries in Latin America that do not have a coastline or border with an ocean. They are surrounded by other countries in South America.
Saudi Arabia and Oman
Yemen, Somalia, and Djibouti border the Gulf of Aden.
Egypt and Yemen.
Oman and Iran are the only countries that border the Gulf of Oman.
yemen
Yemen and Oman.
Yemen and Oman border Saudi Arabia to the south.
If the Gulf of Aden where in the center then Yemen, Djibouti, Somalia, and the Indian Ocean border the Gulf (with Yemen to the North, working counter-clockwise)
Egypt, Sudan, Soudi Arabia and Yemen
Somalia, Djibouti, Yemen, Oman, Iran, Pakistan, India, United Arab Emirates, The Maldives.
Directly north of Yemen is Saudi Arabia. The two countries share a long border that runs along the Arabian Peninsula. Saudi Arabia is one of Yemen's closest neighbors and has significant political and economic interactions with Yemen.
Egypt, Israel, Jordan, Saudi Arabia, and Yemen are the countries that border the Red Sea. However, if the Gulf of Aqaba is not considered part of the Red Sea, then Israel and Jordan should be removed from the above list.