 The Regiment participated in Grant's sidestepping moves southeastward around Lee's right flank across the North Anna river and ended its military service in the trenches in front of Petersburg, Virginia, on June 10, 1864, and was formally mustered out that same day.Those men who had enlisted in June 1861 but who had not reenlisted were sent home to be mustered out in Detroit on June 20, 1864, while the remainder of the regiment, reenlisted veterans and recent enlistees, were incorporated into four companies (A, E, F, and I) and then consolidated into the 5th Michigan Volunteer Infantry Regiment.