The next letter from General Brock is from Fort George, dated 12th July, and states that the enemy were constructing batteries at the different points of the frontier; that he was making exertions to counteract their views; and that the arrival, that morning, of the Royal George and the vessels under convoy, bringing various pieces of ordnance, would give him a decided superiority. Not a single word is said in this despatch of any wish or intention on the part of the Major-General to invade the American territory. Major-General Brock's next letter of the 20th July states, that the enemy had evidently diminished his force, and appeared to have no intention of making an immediate attack. This letter also communicated the intelligence of General Hull's invasion of the Province. It likewise contained details of General Brock's means of defensive warfare, and expressed some apprehension for the fate of the troops under his command, should the communication be cut off between Kingston and Montreal; which apprehension was entertained by him on the supposition, as he stated, that "the _slender means possessed by Sir G. Prevost would not admit of diminution, and consequently that he could not look for reinforcements_." The same letter acknowledged the receipt of the Adjutant General's communication from Quebec, of 25th June, of the declaration of war. In the succeeding despatch from General Brock to Sir G. Prevost, dated 26th July, from Fort George, that officer writes as follows: "I have not deemed it of sufficient importance to commence active operations on this line by an attack on Fort Niagara; it can be demolished, when found necessary, in half an hour, and _there my means of annoyance would cease. To enable the militia to acquire some degree of discipline, without interruption, is of far greater consequence than such a conquest_."