Battle of Raseiniai

For months, the Soviet leadership had refused to heed warnings from the Western Powers of the German troop buildup along its western border. Germany and its Axis partners thus achieved almost complete tactical surprise. Much of the existing Soviet air force was destroyed on the ground; the Soviet armies were initially overwhelmed. German units encircled millions of Soviet soldiers, who, cut off from supplies and reinforcements, had few options other than to surrender.

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