Encouraged by the Catholic archbishop of Armagh, Edmund MacGauran, but opposed by Tyrone, Maguire invaded Connacht straight away and met with the army of Sir Richard Bingham, president of the province, on mid-summer eve. The battle of Sciath na Feart took place at Tulsk, in a fog so dense that the sides only realised their proximity when their cavalries were almost upon one another. Bingham's men fled to their camp, and Maguire pursued but was repulsed and in his turn pursued. The Irish lost MacGauran; the English lost William Clifford. Maguire retired into his country with considerable spoil.