In July 1991 , as the war started , he was a member of the 5th Corps Counter-intelligence service .
Member defected to the fledgling Croatian National Guard , becoming war 's first commanding officer in August 1991 .
In July 1991 , as the war started , he was a member of the 5th Corps Counter-intelligence service , and he defected to the fledgling Croatian National Guard , becoming its first commanding officer in August 1991 .