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
Confederate States of America Confederacy. The Confederacy later accepted Missouri and Kentucky as members, although neither officially declared secession nor were they ever largely controlled by Confederate forces; Confederate shadow governments attempted to control the two states but were later exiled from them. The government of the United States (the Union) rejected the claims of secession and considered the Confederacy illegally founded. The War began with the Confederate attack upon Fort Sumter on April 12, 1861, a Union fort in the harbor of Charleston, South Carolina. No foreign government officially recognized the Confederacy as an independent country, although Great Britain and France granted it