They followed the lines of ancient glaciers. They were defined by large farms and grasslands. They followed the system of rivers, canals, and dams. They were naturally defined by deserts, mountains, and seas.
Answer:
Joining the USSR in the alliance were Albania, Bulgaria, Czechoslovakia, the German Democratic Republic (East Germany), Hungary, Poland and Romania. This lineup remained constant until the Cold War ended with the dismantling of all the Communist governments in Eastern Europe in 1989 and 1990.
Explanation:
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Byzantine empire i'm pretty sure
