The western theater of the American Revolutionary War covered the fighting that broke out between 1775 and 1783 far beyond the coastal battlegrounds most people picture, stretching across the land west of the Appalachian Mountains. This vast frontier would eventually become the Old Northwest of the United States, along with the future states of Arkansas, Kentucky, Louisiana, Missouri, and Tennessee. The conflict here ran alongside the better known war in the east but followed its own course, shaped by different combatants and a different kind of struggle over land and survival.
At its core, this was a fight between Indigenous nations, backed by their British allies operating out of Detroit, and American settlers who had pushed south and east of the Ohio River. The Spanish entered on the side of the settlers, giving the Americans an additional ally in the region. The result was a brutal and sprawling contest for control of the frontier, one that pitted longstanding Native communities against an expanding wave of colonial settlement, with European powers backing opposite sides from behind the scenes.
In the end, the western theater proved just as consequential as the fighting in the east, since it determined who would hold power over enormous stretches of territory once the war concluded. The alliances forged there, Native peoples and the British on one side, American settlers and the Spanish on the other, set the stage for the contested and often violent expansion that would follow across the trans-Appalachian frontier in the decades after independence.
Written by Aubrey Research from Western theater of the American Revolutionary War on Wikipedia, cited as a reference and not reproduced.
Chronology
Fighting in the western theater spanned 1776 to 1783. Select a year to see the engagements of that campaign season across all theaters.
Where these engagements were fought
Select a marker to see the engagement and open its page.
Red markers are surveyed battlefields with a mapped boundary; navy markers are point-located engagements. Select a marker to open its page.
Notable engagements
| Engagement | Year | State | Outcome | Forces or losses |
|---|---|---|---|---|
| Piqua | 1780 | OH | American victory | ~45 killed ; 40 wounded; Shawnee ; Lenape ; Wyandot ; Mingo: |
| St. Louis (San Luis De Ylinoises) | 1780 | MO | Spanish victory | 21-100 killed; 4 killed ; 4 wounded |
| La Balme's Defeat | 1780 | IN | Miami warriors under Little Turtle victory | British: 5 killed, 0 wounded; American: 40 killed, 0 wounded |
| Little Mountain | 1782 | KY | Wyandot victory | British: 17 killed, 2 wounded; American: 7 killed, 6 wounded |
| Siege of Boonesborough | 1778 | KY | American victory | United States: 2 killed ; 4 wounded; Shawnee ; Great Britain |
| Colbert raid | 1783 | AR | Spanish victory | Quapaw Nation: 2 killed ; 1 wounded ; 6 captured; Chickasaw |
| Lochry's Defeat | 1781 | IN | n/a | Iroquois ; Shawnee ; Wyandot: None; 37-41 killed ; 60-64 cap |
| Burning of Grant's Station | 1780 | KY | British victory | American: 3 killed, 0 wounded |
| Battle of Chillicothe | 1779 | OH | American victory victory | 8 killed and 4 wounded / 4-5 killed |
Plus 18 further documented engagements in the Western Theater record.
By state
Each state hub covers the engagements fought there, the forces involved and its chronology.
Battlefield locations and boundaries are compiled from public records, including the National Park Service American Battlefield Protection Program (public domain) and the American Revolution GIS work of Charles E. Frye (CC BY-SA 4.0).