In County Mayo, large-scale guerrilla action did not break out until spring 1921, when two British forces were ambushed at Carrowkennedy and Tourmakeady.
U Mayou, gerilski rat većih dimenzija nije izbio do proljeća 1921. kada su dva britanska odreda bili napadnuti u zasjedama u Carrowkennedyju i Tourmakeadyju.