United States Volunteers were military volunteers called upon during wartime to help the United States Army. They were separate from the Regular Army and the militia.
The 50th Regiment Pennsylvania Volunteer Infantry in Gettysburg, Pennsylvania, in July 1865
U.S. Volunteers in Saltillo, 1847
Monument to the 11th Pennsylvania Infantry Regiment, located in Gettysburg National Military Park
Statue of "The Volunteer" in Marlborough, Massachusetts, honoring local men who fought in the Spanish–American War
The Regular Army of the United States succeeded the Continental Army as the country's permanent, professional land-based military force. In modern times, the professional core of the United States Arm
United States Volunteers
…Volunteer Army, among other variations) were military volunteers called upon during wartime to help the United States Army. They were separate from the Regular Army and the militia. Until the Militia Act of 1903, the land forces of the United States were divided into three organizations…
World War II-era poster advertising a career in the Regular Army