 In January 1995 he was granted the acting rank of lieutenant general and appointed Commander Bosnia and Herzogovina Command to command UNPROFOR in Sarajevo.He was responsible for breaking the siege of the city by creating the UN Rapid Reaction Force, and ultimately thereby bringing the war to an end.His lieutenant general rank was made substantive in April 1995, and he was awarded a Bar to his DSO in 1996 for his services in Bosnia and Herzegovina.