HOA meaning in Regional ?

The Horn of Africa (HoA) is the easternmost peninsula of the African continent, excluding African islands. It lies along the southern boundary of the Red Sea and extends hundreds of kilometers into the Gulf of Aden, Indian Ocean and Guardafui Channel.

The Horn of Africa consists of the internationally recognized countries of Somalia, Ethiopia, Eritrea and Djibouti, as well as the unrecognized country of Somaliland. It covers approximately two million square kilometers (770,000 square miles) and is inhabited by roughly 115 million people (Ethiopia: 110 million, Somalia: 10.9 million, Eritrea: 6.4 million, Somaliland: 5.7 million and Djibouti: 921.8 thousand). In ancient and medieval times, it was known in the Western world as the "land of the Barbaria and Ethiopians". Regional studies on the Horn of Africa are carried out in fields such as Ethiopian studies and Somali studies.