Sledgehammer was first performed live in Canada.
Harlan K. Ullman -LRB- born March 15 , 1941 -RRB- , is Chairman of the Killowen Group that advises leaders of government and business ; Chairman of CNIGuard Ltd and CNIGuard Inc , engaged in protection of critical infrastructure ; Senior Advisor of the Atlantic Council in Washington , DC ; and active on a number of private boards .. A former naval officer , he has commanded destroyers as well as Swift Boats in Vietnam in over 150 combat patrols and actions .