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Union Army - Wikipedia
Union Army | Encyclopedia.com
Union (American Civil War) - Wikipedia
Union Army - HistoryNet
Union Army Divisions, Departments and Districts - Wikipedia
Uniforms of the Union Army - Wikipedia
Union Army - Simple English Wikipedia, the free encyclopedia
Ulysses S. Grant | Biography, Presidency, & History | Britannica
Cavalry Corps (Union Army) - Wikipedia
I Corps (Union Army) - Wikipedia