Just saw this on the BBC website too
My memory is a bit hazy but ISTR what really kicked the peace process into line all those years ago now was the IRA calling a ceasefire for a year and the locals in NI thinking "Hey, this not getting shot at or blown up business isn't so bad."
Of course Sinn Feinn are spouting the usual lines about "Its the BRITISH ARMY's fault for being there.."