Congress of the Confederate States and Kentucky were admitted into the Confederate States of America, requiring offensive military decisions otherwise uncalled for in the western theater, including violating Kentucky's neutrality. Their admission also provided a solid two-state delegation support amounting to 17% of the House and 15% of the Senate backing the Jefferson Davis government throughout the existence of the Confederacy. Treaties with the Five Civilized Tribes also allowed for their seating non-voting representatives in the Confederate Congress, as did the Territory of New Mexico. With the short-lived claim to the far western Arizona Territory, by the end of 1861 the Confederacy had gained the
Congress of the Confederate States would sit as a Constitutional Convention, the Provisional Congress established the several executive departments, virtually mirroring those of the U.S. Government. The only major exception was the Confederate Post Office which was required to be financially self sustaining. On March 4, 1861, the Confederacy adopted its first flag used throughout the Confederacy on the battlefield and at government office buildings for the duration of the Civil War. Following the Confederate attack on Fort Sumter in April 1861, the remaining six states admitted to the Confederate States of America with representation in its Congresses met in three additional sessions between July