12/31/1863
https://www.presidency.ucsb.edu...
"It is to be held, in camp and in the field, drilled, disciplined, and governed according to the Regulations of the United States Army and subject to the Articles of War; but it is not to be ordered ou..."
"They shall be considered as disbanded from the service of the United States whenever the President may so direct."
"Authority to raise a force of State militia, to serve during the war, is granted, by direction of the President, to the governor of Missouri."
"When officers of the said State forces shall act in conjunction with officers of the United States Army of the same grade, the latter shall command the combined force."