In military terminology, a two front war is a war that is waged on two separate fronts, usually opposite each other. It is usually executed by two or more separate forces simultaneously or near-simultaneously, in the hope that their opponent will be forced to split their fighting force to deal with both threats, therefore reducing their odds of success.

Perhaps the most famous example of a two front war was the European theatre during World War II, when Hitler and the Nazis had to deal with troops from the United States and the United Kingdom coming from the west, and troops from the Soviet Union coming from the east. The Nazis were unable to repel either of the two front's advances, and eventually lost the war. While there were other contributing factors - the insufficiency of the German Army for a long war, and the abandonment of blitzkrieg tactics (due to a rising need to defend territory) - the two front war was an important factor in deciding when the Germany Army would be forced to surrender. Adolf Hitler and Benito Mussolini // Preceding events Main articles: Events preceding World War II in Europe, Causes of World War II After Germany lost World War I, the Treaty of Versailes placed extremely harsh conditions on Germany, including huge unrealistic reparations and war guilt clauses. ... Jump to: navigation, search World War II was a truly global conflict with many facets: immense human suffering, fierce indoctrinations, and the use of new, extremely devastating weapons such as the atom bomb World War II, also known as the Second World War, was a mid-20th-century conflict that... Adolf Hitler Adolf Hitler (April 20, 1889 – April 30, 1945, standard German pronunciation in the IPA) was the Führer (leader) of the National Socialist German Workers Party (Nazi Party) and of Nazi Germany from 1933 to 1945. ... Jump to: navigation, search Look up Nazi on Wiktionary, the free dictionary. ...