I have decided to change my question to one which involved the Second World War, as this is the area of history in which I am most knowledgeable. 

MY NEW QUESTION: 
“To what extent was the Soviet Union responsible for the Allied Victory in Europe?”

CONSIDERATIONS:

Contribution of lend-lease to the USSR’s war effort, December 1941-September 1945.

Contribution of the strategic bombing campaign to the weakening of German industry, September 1939-May 1945

Contribution of the Second Front to the ultimate defeat of the Wehrmacht, June 1944 – May 1945.

QUOTES:

“As a matter of historical fact, the Third Reich was defeated by the Red Army and not by the Western democracies.”

BIBLIOGRAPHY:

Historynet, How Lend-Lease Helped the Soviets Defeat the Germans. http://www.historynet.com/did-russia-really-go-it-alone-how-lend-lease-helped-the-soviets-defeat-the-germans.htm. (Accessed 04/06/2015).

Second World War History, World War 2 Statistics. http://www.secondworldwarhistory.com/world-war-2-statistics.asp. (Accessed 5/06/2015).

War Chronicle, Estimated War Dead World War II. http://warchronicle.com/numbers/WWII/deaths.htm. (Accessed 5/06/2015).

IIP Digital, Lend Lease: Facts and Numbers. http://iipdigital.usembassy.gov/st/english/article/2010/05/20100518114619zjsredna0.3529736.html#axzz3c8zBRQvi. (Accessed 5/06/2015).