Army Ground Forces

The Army Ground Forces were one of the three autonomous components of the Army of the United States during World War II, the others being the Army Air Forces and Army Service Forces. Throughout their existence, Army Ground Forces were the largest training organization ever established in the United States. Its strength of 780,000 troops on 1 May 1942 grew to a peak of 2,200,000 by 1 July 1943. Thereafter its strength declined as units departed for overseas theaters.

Origins

Army Ground Forces traces their origins back to General Headquarters, United States Army (GHQ), which were activated on 26 July 1940. Although inactive before this date, GHQ had long featured in mobilization plans as far back as 1921 as a headquarters for directing US field armies overseas, similar to that of the American Expeditionary Forces in World War I. This was not realized in practice because the war was fought in many theaters, so overall direction was exercised by the War Department General Staff. Nor did GHQ become the equivalent of a theater command for the Zone of Interior; administrative authority was exercised by G-4 of the War Department General Staff through the Corps Area Commands. Instead, GHQ was drawn into the enormous task of raising and training a mass army.

Army

An army (from Latin arma "arms, weapons" via Old French armée, "armed" (feminine)) or ground force is a fighting force that fights primarily on land. In the broadest sense, it is the land-based military branch, service branch or armed service of a nation or state. It may also include other branches of the military such as the air force via means of aviation corps. Within a national military force, the word army may also mean a field army. They differ from army reserves who are activated only during such times as war or natural disasters.

In several countries, the army is officially called the Land Army to differentiate it from an air force called the Air Army, notably France. In such countries, the word "army" on its own retains its connotation of a land force in common usage. The current largest army in the world, by number of active troops, is the People's Liberation Army of China with 2,250,000 active troops and 800,000 reserve personnel followed by the Indian Army with 1,129,000 active troops and 2,142,900 reserve personnel.