The act of South Carolina on December 20 led immediately to the formation of the confederacy of the lower Southern States. The firing on Fort Sumter was followed in a few days by the secession of Virginia, Tennessee, and Arkansas, Texas having already joined the "revolution"; Maryland, Kentucky, and Missouri were prevented from joining the new confederacy only by the prompt and extra-legal interference of President Lincoln. The second tier of Southern States thus joined the first, and a confederacy of some ten million people demanded the independence which all agreed had not been forbidden in the Constitution of 1787, and began at once the raising of armies to make good that demand. The boundaries of the new republic were extended to the Potomac; commissioners were sent to the European powers to sue for recognition, and hundreds of the best officers in the United States Army resigned to seek commands under the new flag. The popular excitement and enthusiasm which followed these events in the South equaled that which marked the early stages of the French Revolution. Party lines and class distinctions disappeared. Two hundred thousand volunteers offered their services to Jefferson Davis; confederate and state bonds to meet the expense of the war were taken at par wherever there was surplus money; men met at their courthouses to drill without the call of their officers; and women, even more enthusiastic than the men, urged their "guardians and protectors" to the front to meet and vanquish a foe who threatened to invade the Southern soil. Armories were quickly constructed in a country which knew little of the mechanic arts; guns and ammunition were ordered from Europe and from Northern manufacturers as fast as trusty agents could make arrangements; shipbuilding was resorted to on the banks of the sluggish rivers; and machinists and sailors were imported from the North and from England to guide the amateurish hands of the South. Before midsummer four hundred thousand Southerners were in arms or waiting to receive them. Colonel Robert E. Lee, accounted the first soldier of the country, was made a general in the new army. Joseph E. Johnston, Albert Sidney Johnston, Pierre G. T. Beauregard, and others accepted with confidence the commissions of the South, and set hundreds of younger men, trained at West Point or at the Virginia Military Institute, to drilling and organizing the armies rapidly gathering at strategic points along the frontier, which extended from Norfolk, Virginia, to the eastern border of Kansas.