The correct answer is <span>contain Communism
Having a common market with free trade would allow capitalism and the free market to prosper which would counter any communist tendencies that the countries might have had after the war. It actually worked as it prevented communism from spreading throughout the western Europe even when it was ravaged.</span>
With the assistance of the ulema and qadis, the Abbasid empire was administered "<span>under the guidelines of the Quran and sharia," since there was an unflappable religious influence to the governance strategy. </span>
This is a hard question that is open to discussion even among historians who specifically study World War 2 as a topic and specialize in it.
The most frequent answers that would probably be given is:
1. Pearl Harbor - with the attack of the Japanese on Pearl Harbor, USA was effectively dragged into the war which may have tipped the odds in favour of the Allies.
2. Stalingrad - the Soviet Union captured a huge German army in Stalingrad. The soldiers from this army were either imprisoned until the rest of the war or died due to hunger. In effect this meant that the German forces lost a whole army on the Eastern front.
3. Normandy landings - the Normandy invasion gave the Allies a foothold on the beaches of Western Europe from where they could invade through the mainland right into Berlin by the end.