Five nations participated in a NATO exercise called "Peacekeeper" in the North Atlantic in 1969.



Rotterdam: Canadian Ambassador to the Hague, Netherlands, Mr. A.J. Pick is welcomed aboard aircraft carrier HMCS Bonaventure by Commodore Noel Cogdon, Senior Canadian Officer Afloat. Bonaventure and three destroyers started a four-day courtesy visit to Rotterdam after participating in NATO exercise Peace Keeper in North Atlantic, September 1969.