Originally part of the Ottoman Empire located at the southern tip of the Red Sea and strategically of great Military importance controlling the entrance to the Red Sea and later the Suez.  British Royal Marines landed January 1839 and British Military and Navy remained in occupation, later joined by RAF personnel. During WW1 Turkish military forces invaded from the North and got as far South as Lahej before British/Indian military forces repelled them. From 1964 to the end of 1967 after bitter urban and hinterland fighting British Military forces pulled out.

Aden is now part of Yemen, impoverished and embroiled in a long, bitter and seemingly never ending Civil war.