Bruce heard of Lordship soldiers, led by John de Bermingham and Edmund Butler, of being in an area of Armagh County called Moiry Pass. Bruce attacked the Lordship. The Lordship was caught off-guard by Bruce's army. The Lordship was not prepared for a battle at that time so they immediately started losing forces. The Lordship tried to run but Bruce relentlessly followed. By dusk the Lordship had lost most of its forces and the survivors scattered into the surrounding woods. The battle was a success for Bruce and was the start of a war.