Ogdensburg Agreement
Ogdensburg Agreement, August 18, 1940, an executive agreement between President Franklin D. Roosevelt of the United States and Prime Minister W. L. Mackenzie King of Canada, at Ogdensburg, New York. It created the Permanent Joint Board of Defense to recommend measures for the defense of the northern half of the Western Hemisphere. Many important World War II projects went into effect as a result of the board's recommendations. Among these were the building of the Alaska Highway through Canadian territory and the establishment of United States weather stations at strategic points in the Canadian Arctic.