Mokha, also spelled Mocha, or Mukha, is a port city on the Red Sea coast of Yemen. Until Aden and al Hudaydah eclipsed it in the 19th century, Mokha was the principal port for Yemen's capital, Sanaa. Long known for its coffee trade, the city gave its name to Mocha coffee.

Aden is a port city located in Yemen in the southern part of the Arabian peninsula, positioned near the eastern approach to the Red Sea. It is situated approximately 170 km east of the Bab-el-Mandeb strait and north of the Gulf of Aden. With its strategic location on the coastline, Aden serves as a gateway between the Red Sea and the Arabian Sea, making it a crucial maritime hub connecting Africa, Asia, and the Middle East. As of 2023, Aden City has a population of approximately 1,080,000 residents, making it one of the largest cities in Yemen.