The first act of this Supreme Council was to appoint General O'Neil as Commander-in-Chief in Ulster; General Preston, in Leinster; General Barry, in Munster; and Sir John Burke as Lieutenant-General in Connaught; the supreme command in the West being held over for Clanrickarde, who, it was still hoped, might be led or driven into the Confederacy. We shall endeavour to indicate in turn the operations of these commanders, thus chosen or confirmed; leaving the civil and diplomatic business transacted by the General Assembly, or delegated to the Supreme Council, for future mention.
Contrary to the custom of that age, the Confederate troops were not withdrawn into winter quarters. In November, General Preston, at the head of 6,000 foot and 600 horse, encountered Monk at Tymahoe and Ballinakil, with some loss; but before the close of December he had reduced Birr, Banagher, Burris, and Fort Falkland, and found himself master of King's county, from the Shannon to the Barrow. In February, however, he sustained a serious check at Rathconnell, in endeavouring to intercept the retreat of the English troops from Connaught, under the command of Lord Ranelagh, and the younger Coote; and in March, equal ill success attended his attempt to intercept Ormond, in his retreat from the unsuccessful siege of the town of Ross. Lord Castlehaven, who was Preston's second in command, attributes both these reverses to the impetuosity of the general, whose imprudence seems to have been almost as great as his activity was conspicuous. In April and May, Preston and Castlehaven took several strongholds in Carlow, Kildare, and West-Meath, and the General Assembly, which met for its second session, on the 20th of May, 1643, at Kilkenny, had, on the whole, good grounds to be satisfied with the success of the war in Leinster.
In the Southern Province, considerable military successes might also be claimed by the Confederates. The Munster troops, under Purcell, the second in command, a capable soldier, who had learned the art of war in the armies of the German Empire, relieved Ross, when besieged by Ormond; General Barry had successfully repulsed an attack on his head-quarters, the famous old Desmond town of Killmallock. In June, Barry, Purcell, and Castlehaven drove the enemy before them across the Funcheon, and at Kilworth brought their main body, under Sir Charles Vavasour, to action. Vavasour's force was badly beaten, himself captured, with his cannon and colours, and many of his officers and men. Inchiquin, who had endeavoured to form a junction with Vavasour, escaped to one of the few remaining garrisons open to him—probably Youghal.