Because they picked on more than one country...
Germany was attempting to avoid a war on two fronts.
War on Two Fronts
Western, Eastern & Balkan (Italian), and to a lesser extent Middle Eastern.
figthing
Germany was forced to divide her military assets to fight in two separate theaters of the war : Eastern and Western Fronts .
Germany in WW2 had many fronts but i think what you are asking that in Europe since 1941 was fighting the Soviet Union, in 1944 the allied forces landed in Normandy, France which forced Nazi Germany to fight on both fronts but Germany was also fighting in North Africa and Italy until the Normandy landings.
Schlieffen country(germany) was trying to avoid two wars on two fronts
It fought the war in two separate locations.It had to split its army to fight on two fronts.~APEX
Well, World War One was a deadly war. That's one disadvantage. At the end of the War, Germany had to pay war reparations, approximately $33 Billion!well world war one had a big part in russia and franceB.It had to fight against enemies on both sides of Germany.
Germany was forced to divide her military assets to fight in two separate theaters of the war : Eastern and Western Fronts .
Mobilise thus meaning Germany had to fight the war on two fronts
Germany was bordered by France in the west and Russia in the east.