Nazi Germany and the Soviet Union had a non aggression pact. When Germany's attempt to conquer England failed Hitler turned his attention to the Soviet Union. When Germany broke the treaty with the Soviet Union the Soviet Union asked to join the Allies in the fight against the Axis Powers.
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The cartoonist suggest that building the canal was death coming towards Panama's way
Ultimately, the end of the Vietnam war resulted in communist control of Cambodia,Laos,and Vietnam. The Vietnam war was fought between 1st of November in the year 1955 to 30th of April in the year 1975.