First organized in France in 1918 during World War I, I Corps — 'America's First Corps' — fought in the Meuse-Argonne Offensive and served in the Pacific in World War II and in Korea. Reactivated and based at Joint Base Lewis-McChord, Washington, it is now the Army's corps headquarters focused on the Indo-Pacific region. It is a major subordinate command of U.S. Army Forces Command.
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What is I Corps?
Serves as the Army's primary corps-level headquarters oriented toward the Indo-Pacific theater.
What military branch is I Corps in?
I Corps is a unit of the U.S. Army.
Who commands I Corps?
I Corps operates under U.S. Army Forces Command (FORSCOM).
Where is I Corps based?
I Corps is headquartered at Joint Base Lewis-McChord, Washington.
When was I Corps established?
I Corps was established in 1918.
Is I Corps a special operations unit?
No. I Corps is a conventional formation, not a special-operations unit.
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