Today's operational environment finds irregular warfare alive and well. Irregular forces' organization, size, composition, and depth of support vary greatly on the battlefield. These dynamics correspondingly impact their overall influence and effect on a given conflict, as irregulars may serve as a mere harassment or weigh heavily on the final results. The state of Missouri and the surrounding region were no strangers to guerrilla and irregular warfare during the American Civil War. Pre-existing conflict and competing sentiments for secession or neutrality laid the roots for a violent struggle to determine the fate of Missouri as a Union or Confederate state. Pro-Confederate Missourians formed irregular organizations to fight for a secessionist Missouri. These forces associated with the Confederate government and army to pursue common objectives; however, the relationships between these organizations were largely ill-defined. Two predominant pro-Confederate organizations, the Missouri