First Battle of Curlew Pass

Strategic Context. The engagement occurred during the Earl of Essex's campaign in the Nine Years' War. English commanders, including Sir Conyers Clifford, faced increasing effectiveness from Irish rebel forces, a challenge Clifford's overconfidence exacerbated.

The Ambush. Irish forces prepared an ambush site in the Curlew Mountains along the English line of march. A lightly defended barricade was abandoned by scouts who rode to inform O'Donnell of the approaching English vanguard.

Outcome. The English were routed after initial advances were halted by sustained Irish fire. The entry of Brian Óg's Gallowglasses caused panic, leading to the death of about half the English force.