| Colorado Coalfield War | |||||
|---|---|---|---|---|---|
| Part of the Coal Wars | |||||
 Colorado National Guard soldiers during the Ludlow Massacre in 1914. | |||||
| |||||
| Belligerents | |||||
 United States | Colorado Coal miners | ||||
| Casualties and losses | |||||
| 69 - 199 | |||||
The Colorado Coalfield War was a major labor uprising in Colorado between 1913 and 1914. It culminated in the Ludlow Strike, which ended as a massacre when the Colorado National Guard attacked the striking miners. In retaliation for Ludlow, the miners armed themselves and attacked dozens of mines over the next ten days, destroying property and engaging in several skirmishes with the National Guard along a forty-mile front from Trinidad to Walsenburg. The entire strike would cost between sixty-nine and 199 lives. It was described as the "deadliest strike in the history of the United States".[1][2][3][4]
