At the Engagement at Bayou Fourche, U.S.A. forces included the 10th Illinois Cavalry, 1st Iowa Cavalry, 2nd Missouri Cavalry, 3rd Missouri Cavalry, 7th Missouri Cavalry, 8th Missouri Cavalry, Vaughan's Illinois Artillery Battery, 2nd Missouri Light Artillery with Batteries K and M, Lovejoy's Missouri Battery, and the 25th Ohio Battery, while C.S.A. forces included the 1st Arkansas Cavalry, 5th Arkansas Cavalry, Denson's Louisiana Cavalry, Morgan's Texas Cavalry, 1st Missouri Cavalry, elements of the 2nd, 3rd, 4th, 5th, 6th and 8th Missouri Cavalry, Kitchen's Missouri Cavalry Regiment, Elliott's Missouri Cavalry, Blocher's Arkansas Artillery Battery known as The Bull Battery, Arkansas Artillery Washington Arkansas Artillery Battery, and reserve infantry from the 27th, 33rd, 38th, and Hardy's Arkansas Infantry Regiment.