De Havilland D.H.9s of the RAF’s Z Unit line up for a mission against Mohammed bin Abdullah Hassan, who had defied British colonial authorities in Somaliland for two decades. (RAF Museum, Hendon)
RAF Museum, Hendon
De Havilland D.H.9s of the RAF’s Z Unit line up for a mission against Mohammed bin Abdullah Hassan, who had defied British colonial authorities in Somaliland for two decades. (RAF Museum, Hendon)
RAF Museum, Hendon