Sea in culture of barbarian invaders and knowledge of geography took a backward step. In the seventh century, Isidore of Seville produced a "wheel map" in which Asia, Africa and Europe were arranged like segments in an orange, separated by the "Mare Mediterranean", "Nilus" and "Tanais" and surrounded by "Oceanus". It was not until the fifteenth century that Ptolemy's maps were used again and Henry the Navigator of Portugal initiated ocean exploration and maritime research. Encouraged by him, Portuguese navigators explored, mapped and charted the west coast of Africa and the Eastern Atlantic and this knowledge prepared the way for the great voyages
United States Air Forces in Europe - Air Forces Africa United States Air Forces in Europe - Air Forces Africa The United States Air Forces in Europe – Air Forces Africa (USAFE-AFAFRICA) is a United States Air Force major command (MAJCOM) and a component command of both United States European Command (USEUCOM) and United States Africa Command (USAFRICOM). As part of its mission, USAFE-AFAFRICA commands U.S. Air Force units pledged to NATO, maintaining combat-ready wings based from Great Britain to Turkey. USAFE-AFAFRICA plans, conducts, controls, coordinates and supports air and space operations in Europe, parts of Asia and all of Africa with the exception of Egypt to achieve U.S. national