(CPT132 Nov. 29)--NEW ROLE--Gen. John de Chastelain, chief of the defence staff, is expected to be named a member of a special group working on the peace process in Ireland following his retirement at the end of December. De Chastelain is shown in this Jan. 23, 1995, file photo. (CP PHOTO) 1995 (Fls-stf-Tom Hanson) tf