A Federal division isolated in northwestern Arkansas becomes prey to Confederates poised to not only wipe the Federals out of the state but to reenter Missouri as well.
Confederate General Joseph E. Johnston finds himself at odds with President Jefferson Davis over strategy, and the Confederate secretary of war resigns.
Texas announces a state of war with the U.S., Federals in New Mexico brace for a Confederate invasion, and Confederates in Arkansas are authorized to aid the Missouri State Guard.
Federal commanders accepted the surrender of the last major organized Confederate force still in the field.
October 23, 1864 – The largest battle of the Trans-Mississippi took place as Major General Sterling Price’s Confederates took on two Federal forces approaching them