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. Morgan led raids into Kentucky as well. In his last raid, he violated orders by going across the Ohio River and raiding in Ohio and Indiana as well since he wanted to bring the war to the North. The long raid diverted thousands of Union troops. Morgan captured and paroled nearly 6,000 troops, destroyed bridges and fortifications, and ran off livestock. By mid-1863, Morgan's Raiders had been mostly destroyed in the late days of the Great Raid of 1863.