 Being on the direct route from Dublin to Derry and within striking distance of the strong Enniskilling base at Enniskillen, Trillick became an important post during the Jacobite wars.From 1629, the planters were being trained in the use of firearms by Charles Bastard of Drumdran, while the natives, including members of the O'Neill clan on the run, were being trained by agents of Phelim O'Neill of Caledon.In 1641 O'Neill had garrisons at Golan and Liffer, while the planters had garrisons at Castle and Corkhill.