Map of countries nominally represented in the International Peasant Union of Washington, D. C.   Joined by 1948   Joined by 1950   Joined by 1964   Areas of the Eastern Bloc not represented in the UPU Note: Shaded areas represent regional parties. Both Yugoslavia and Czechoslovakia had two members each.Source: Miguel Cabo, "El trébol de cuatro hojas. La International Peasant Union y su actuación durante la Guerra Fría", in Historia y Política, Vol. 40, 2018, pp. 299–329
Own work
Dahn