Abstract
This article analyses the development of political relations between Great Britain and Canada in the era between the Statute of Westminster in both countries (1931) and the signing of the defensive agreement in Ogdensburg between Canada and the United States of America (August 1940). The article discusses the attitude of both countries to the key events and developments of the period: the Great Depression, the Imperial Economic Conference in Ottawa (1932), the Imperial Conference in London (1937) and the threat of another world war.
When the Second World War started in September 1939, Canada joined the war on the side of its mother country. The rapid changes, however, had made Canada move closer to the United States of America in the economic and military spheres.