OBB

- Germany, USSR. // Text of the Nazi-Soviet Non-Aggression Pact //. By Ribbentrop and Molotov. Moscow, 1939. // Modern History Sourcebook //. Aug. 1997. Web. 4 Apr. 2011. . - Germany. // Directive No. 21 Operation Barbarossa //. By Adolf Hitler. // Pobediteli //. 2005. Web. 4 Apr. 2011. .
 * __Works Cited__**

- Cherniak, Jan, and Jane Zavalishina. "Pobediteli." Map. // Pobediteli //. 2005. Web. 4 Apr. 2011. . - Brooman, Josh. // Roads to War: The Origins of the Second World War //. New York: Longman, 1989. Print. - Brooman, Josh. // Weimar Germany: Germany 1918-33 //. New York: Longman, 1985. Print.

- Brooman, Josh. //Global War: The Second World War, 1939-45//. New York: Longman, 1990. Print.