Idaho in the American Civil War Idaho in the American Civil War The history of Idaho in the American Civil War is atypical, as the territory was far from the battlefields. At the start of the Civil War, modern-day Idaho was part of the Washington Territory. On March 3, 1863, the Idaho Territory was formed, consisting of the entirety of modern-day Idaho, Montana, and all but southwest Wyoming. However, there were concerns about Confederate sympathizers in the eastern half of the territory, in what is present-day Montana. As a result, in 1863 Sidney Edgerton traveled quickly to see President Abraham Lincoln about the situation; this was
Campaigns of the American Civil War Campaigns of the American Civil War The campaigns of the American Civil War are categorized in various ways. The U.S. Army Institute of Heraldry has identified 25 campaigns that are used for streamers, decorative devices attached to unit flags that denote participation in historic battles or campaigns. (An alternative campaign categorization is that of the National Park Service, charged with maintaining Civil War battlefields and other historic sites. This categorization is more detailed and inclusive than the Army heraldry version, particularly for actions outside the Eastern Theater and Western Theater; see .) The Civil War campaign streamers are equally divided