Going back to January 15th, General Edmund Pendleton Gaines, who was on a tour of inspection through the Western Department, first heard of the troubles in Florida, and at once called on the Governor of Louisiana and requested him to hold in readiness a body of volunteers for service in subduing the Seminole Indians.

He also wrote to the adjutant general at Washington, urging that no time be lost in succoring the troops in Florida, and saying, from his knowledge of the Seminole character, that at least four thousand men would be required to subdue them, protected and aided by a strong naval force.

At that time the United States was divided into two military departments by a line drawn from the southern part of Florida to the northwestern extremity of Lake Superior. The Eastern Department was under the command of General Winfield Scott, and the Western under that of General Gaines, and by reference to a map it will be seen that the line passed directly through the theater of hostilities in Florida. The meeting of these two distinguished generals was purely accidental. General Scott was in Washington when the news was received of General Clinch's engagement with the Seminoles. After dispatching his letter to the adjutant general, General Gaines proceeded to Pensacola for the purpose of getting the co-operation of the naval forces at that station. He found, however, that Commodores Dallas and Bolton and Captain Webb had received orders to direct their attention to the inlets of Florida, whence they had sailed. He received here the most alarming intelligence of the state of affairs in Florida. He proceeded to Mobile on January 18th, and there learned that Fort Brooke was invested by the Indians and the garrison in great danger of being cut off and slaughtered. He at once sent an express to General Clinch, supposed to be at Fort King, stating that he would arrive at Fort Brooke about February 8th with seven hundred men, and requested General Clinch to take the field and march southward and form a junction with him at Fort Brooke.

As the crisis demanded immediate action, and General Scott being present to receive the instructions of the Government in person, he was charged with the direction of the campaign without regard to department boundaries. General Gaines had left his headquarters at Memphis, Tenn., on a tour of inspection through his department, and it was very uncertain when or where the orders and instructions of the Government would reach him; and as the immediate services of an officer of high rank of mind and discreet judgment were required to maintain the neutrality of the United States during the war between the Texans and Mexicans, General Gaines was selected for that important duty. However, the official dispatches did not reach General Gaines until he had already taken the field in Florida and marched from Fort Brooke to Fort King, within ninety-five miles of where General Scott had established his headquarters.

In pursuance of this plan, Lieutenant-Colonel David E. Twiggs was ordered to receive into service the eight companies of volunteers requested of the Governor of Louisiana, adding them to the command of such regular troops as might be in the vicinity of New Orleans, all to be held in readiness for a movement to Tampa Bay. The troops were mustered into service on February 3d. General Gaines having arrived in New Orleans on January 27th, chartered three steamers to convey the troops and stores. The Legislature of Louisiana had appropriated eighty-five thousand dollars for the equipment of her volunteers, and on February 4th the chartered steamers, with the Louisiana volunteers and one company of regulars, were under way, and on the same day another steamer, with Colonel Twiggs and Companies B, E, G, H, I, and K of the regulars, left New Orleans. The vessels arrived safely at Hillsboro Bay, four miles distant from the garrison, on February 8th, 9th, and 10th, and the troops were immediately disembarked and camped just outside of the fort.

The fort was a triangular work formed by pickets with blockhouses at the apex, the base resting on the bay and flanked on the west by Hillsboro River. It was found that there were at the fort about two hundred regular troops, composed of Companies A, B, C, and H of the Second Artillery, and Company A of the Fourth Infantry, with Majors Francis S. Belton, Richard Augustus Zantzinger, and John Mountford, Lieutenants John Breckenridge Grayson, Samuel McKenzie, John Charles Casey, Thomas C. Legate, Edwin Wright Morgan, Augustus Porter Allen, and Benjamin Alvord, and Surgeons Henry Lee Heiskell and Reynolds. Major Belton was the commanding officer of the post.

General Gaines, having received instructions at Pensacola from the Secretary of War to repair and take charge of the forces which were assembling on the Mexican frontier, announced the fact to Colonel Twiggs; but the troops, on hearing this, manifested great dissatisfaction, and insisted that as they had volunteered to go under the command of General Gaines, he in good faith should be their leader. Following is the text of the letter of the Secretary of War to General Gaines:

"War Department, Washington, January 23, 1835.

"Sir: I am instructed by the President to request that you will repair to some proper position near the western frontier of the State of Louisiana, and there assume the personal command of all the troops of the United States which are or may be employed in any part of the region adjoining the Mexican boundary.

"It is not the intention of this order to change at all the relations between yourself and the military departments under your command, to require your personal presence at a point where public considerations demand the exercise of great discretion and prudence...."