Military production during World War II

Germany's economic, scientific, research, and industrial capabilities were one of the most technically advanced in the world at the time, supporting a rapidly growing, innovative military.

Political demands necessitated the expansion of Germany's control of natural and human resources, industrial capacity and farmland beyond its borders.

They fought the German, Italian, Japanese and Vichy armies, air forces and navies across Europe, Africa, Asia, the Middle East, India, the Mediterranean and in the Atlantic, Indian, Pacific and Arctic Oceans.

Following engagements with Axis forces, British Empire troops occupied Libya, Italian Somaliland, Eritrea, Ethiopia, Iran and Iraq.

The British held back or slowed the Axis powers for three years while mobilising their globally integrated economy and industrial infrastructure to build what became, by 1942, the most extensive military apparatus of the war.

This allowed their later allies (such as the United States) to mobilise their economies and develop the military forces required to play a role in the war effort, and for the British to go on the offensive in its theatres of operation.

[1] At the beginning of the war, the British and French placed large orders for aircraft with American manufacturers and the US Congress approved plans to increase its air forces by 3,000 planes.

In May 1940, Franklin D. Roosevelt called for the production of 185,000 aeroplanes, 120,000 tanks, 55,000 anti-aircraft guns and 18 million tons of merchant shipping in two years.

In addition to out-producing the Axis, the Allies produced technological innovations; through the Tizard Mission, British contributions included radar (instrumental in winning the Battle of Britain), sonar (improving their ability to sink U-boats), and the proximity fuze; the Americans led the British-originated Manhattan Project (which eliminated the need to invade Japan).

Recognising the importance of their population and industrial production to the war effort, the USSR evacuated the majority of its European territory—moving 2,500 factories, 17 million people and great quantities of resources to the east.

"[7] Access to resources and to large, controlled international labour pools, and the ability to build arms in relative peace, were critical to the eventual victory of the Allies.

Along with tax percentages reaching high amounts, spending on non-defense programs were cut in half during the period of World War II.

[39] Prior to the Second World War, the United States was cautious with regard to its manufacturing capabilities as the country was still recovering from the Great Depression.

The government paid for this production using techniques of selling war bonds to financial institutions, rationing household items and raising taxes.

Women metalworkers during the siege of Leningrad
Russian women working in city factory at the height of the Siege of Leningrad
Assembly line of Messerschmitt Bf 109G-6s fighters in a German aircraft factory
Indian workers check new fuel tanks at the Hindustan Aircraft Factory in Bangalore , 1944
Mushroom-shaped cloud
The first atomic bomb
Overhead view of assembly lines in large airplane factory
Assembly line production of fighter aircraft near Niagara Falls, New York
To move raw materials and supply distant forces, large numbers of cargo ships had to be built
Ratio of GDP between the major Allied and Axis powers 1938–1945
Three African-American workers complete the pilot's compartment of an aircraft, 1942