Upon the receipt of Gen. Fremont’s last message, to the effect that no help would be sent, Gen. Lyon resolved upon attacking his enemy down on Wilson’s creek and trusting to the effect of a surprise and a fierce fight. He was led to this course by the fact that he knew his situation would not improve with time, and perhaps by his knowledge of the fact that Price and McCulloch were about to attack _him_.[6] To fight on the defensive about Springfield, with a town full of women and children behind him and an open country adapted to the movements of cavalry, of which he had but a handful, and of which his enemy’s force largely consisted, could but result one way—in defeat. The Confederates were expecting to attack, not to be attacked, and if the Federals should fall suddenly upon them it would disconcert them very materially, to say the least. These were the tactics adopted by Gen. Lee when Grant crossed the Rapidan, in the spring of 1864, and by Napoleon, in the first campaign in Italy. Accordingly, late in the afternoon of the 9th (Friday) word was sent to the subordinate commanders that after nightfall another movement against the Confederates would be made. Between Gens. Lyon and Sweeney, Col. Sigel, and Maj. Sturgis, the plan of attack was agreed upon. That part of the plan which arranged for sending Sigel’s brigade around completely to the south and rear of the Confederate position, was, it is said, adopted by Gen. Lyon upon the most urgent suggestions and representations of Col. Sigel himself. The army was to be divided into two columns. The first column, under Lyon, was to consist of three small brigades, the second under Sigel, was to consist of one small brigade composed of two regiments of infantry, two companies of cavalry, and six pieces of artillery. The first brigade of Lyon’s column was composed of three companies of the 1st U. S. regular infantry, as follows: Co. B, Capt. Gilbert; Co. C, Capt. Plummer; Co. D, Capt. Huston; a company of regular rifle recruits under Lieut. Wood,—the four companies being commanded by Capt. Plummer, of Co. C. Then there were two companies of the 2d Missouri Volunteers, under Maj. P. J. Osterhaus; Capt. Woods’ company (mounted) of the 2d Kansas Volunteers; Company B, 1st U. S. regular cavalry, under Lieut. Caulfield, and a light battery of six pieces commanded by Capt. James Totton. The first brigade was commanded by Maj. Sturgis. The second brigade was commanded by Lieut. Col. Geo. L. Andrews, of the 1st Missouri Volunteers (Blair’s regiment), and was composed of the 1st Missouri infantry; Cos. B and E, 2d U. S. regular infantry, under Capt. Fred Steele; one company of regular recruits under Lieut. Lothrop; one company (squad) of mounted recruits under Sergeant Morine, and Lieut. Dubois’ light battery of four pieces, one a 12-pounder.