The Second Battle of El Alamein was perhaps the most important battle in the African theatre because it was the first major Allied offensive against the Germans.
El Alemein
Battle of the Somme
The four most important battles were Battle of Verdun Battle of The Somme Battle of Ypres And the 1918 Battle of Amiens
It led to the demise of German power in Africa.
World War 2 Battle of Stalingrad Battle of Britain Battle of the Atlantic Battle for Midway Battle of Leningrad
Stalingrad or El Alamein
Most of the peoples of the world - those not located in Northeastern Europe, North Africa and Western Asia.
I'd say the Battle of Vimy Ridge in World War 1
Atlantic:D-day invasion, Berlin, Stalingrad, Africa Pacific:Midway,Iwo Jima/Okinawa, Guadalcanal, Guam, Philippines
Battle of Stalingrad. Click on the link to find out: http://en.wikipedia.org/wiki/Battle_of_Stalingrad
The battle of the hamburgers. The German's supply of burgers was cut off so they invaded America to get more. This caused world war 1.
Battle of Marnes