Claim: Sir Christopher Wallace was appointed as Lieutenant General in the Chief of Joint Operations (appointment held by the 3*-ranked Officer that leads PJHQ) on April 1996; while Sir Ian Garnett was appointed as Vice Admiral on February 1999.
Evidence: April 1996 Lieutenant General Sir Christopher Wallace February 1999 Vice Admiral Sir Ian Garnett The Chief of Joint Operations (CJO) is the appointment held by the 3*-ranked Officer that leads PJHQ. Chiefs of Joint Operations