 Subsequently, they were assigned guard duty until March 4, 1862, when they relocated to Point Pleasant, near New Madrid, Missouri, where they became part of General John Pope's Army of the Mississippi.From this base, during March and April, they participated in the Battle of Island Number Ten, which ended with a major victory that opened the Mississippi to Union forces down to Fort Pillow, just above Memphis.Thousands of Confederate prisoners were taken, along with valuable supplies.