Ethiopian Rebels cheer after capturing the Debre Zeit AB, in May 1991. Note the title "Ethiopian Air Force" applied in English underneath the cockpit of the An-12B in the background - a somewhat unusual practice for an air force heavily dependable on Soviet and Cuban support. (Tom Cooper collection)
Source:
http://www.nytimes.com/1991/05/27/world/ethiopian-rebels-capture-key-base.html