The primary weapons of U-boats were [[torpedo]]es.
The primary weapons of U-boats were [[torpedo]]es.
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===Lend Lease===
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{{See also|Lend Lease}}
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The official Soviet position and that of its [[Comintern]] allies prior to June 22, 1941 was in direct and vocal oppostition to Lend-Lease. Once the German Chancellor Adolf Hitler violated the terms of the [[Molotov-Ribbentrop pact]], oppostition ceased.
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As the war progressed the [[Soviet Union]] became locked in a struggle with the invading German [[Wehrmacht]] and greatly benefited from the US war materials; they were delivered via Arctic seaports of [[Archangel]] and [[Murmansk]], over land across Persia ([[Iran]]), and via [[Vladivostok]]. While Soviets historians downplayed the importance of the aid, recent scholarship has discovered how essential it was to the Soviet war effort.