World War II was a global conflict that lasted from 1939 to 1945, involving most of the world's nations, including all of the great powers. Known as the deadliest conflict in human history, it led to significant changes in the world's political boundaries and influenced many social and economic developments. This tumultuous period saw large-scale conscription, rationing, and a total war economy focused on military needs.
The war emerged from unresolved conflicts of World War I and the rise of fascist governments in Germany, Italy, and Japan, whose aggressive expansionist policies led to their eventual conflict with the Allied powers—which included the United States, Soviet Union, and British Empire. The Allies eventually triumphed, but only after the deployment of unprecedented military strategies and weaponry, including the devastating use of nuclear weapons on the Japanese cities of Hiroshima and Nagasaki.
The Home Front
One key aspect of the war was the extensive mobilization of economies and populations, known as the home front, where citizens who were not deployed in military service supported the war effort through various means. In the United States, manufacturing shifted toward war production, and civilian resources were managed to cater to military needs.