 Complete the following phrase:  Lastly, deep raids by conventional cavalry forces were often considered irregular in nature. The Partisan Brigades of Nathan Bedford Forrest and John Hunt Morgan operated as part of the cavalry forces of the Confederate Army of Tennessee in 1862 and 1863. They were given specific missions to destroy logistical hubs, railroad bridges, and other strategic targets to support the greater mission of the Army of Tennessee. By mid-1863, with the destruction of Morgans raiders during the 