Ethiopia purchased modern weapons from France and Russia.
Ethiopia won its wars against Italy and has successfully secured its sovereignty because they bought some artillery pieces from Russia. Russia also supported Ethiopia with military advisers and army training. United Kingdom and France also supported Ethiopia to prevent Italy from becoming their colonial competitor.
The Europan countries which were considered to be "behind the Iron Curtain" included: Poland,Estearn Germany, Czechoslovakia, Hungary,Yugoslavia, Romania, Bulgaria, Albania and the Soviet Union. Hope this helps
The best answer among the following choices would be the third option C) They wanted to use the waterways to transport goods and crops to distant markets.