Defence : exchange of notes constituting an agreement between the Government of Canada and the Government of the United States of America to extend for ten years the agreement of June 17, 1986 providing for the continued operation and maintenance of the torpedo test range in the Strait of Georgia and to amend the annex attached to the exchange of notes of January 13 and April 14, 1976, Washington, December 17, 1999, in force December 17, 1999 =