The First and Second World Wars left Britain weakened and less interested in its empire. Also many parts of the empire contributed troops and resources to the war effort and took an increasingly independent view. This led to a steady decline of the empire after 1945.
Relations with Britain were amiable, and the colonies relied on British trade for economic success and on British protection from other nations with interests in North America. Heightened interaction between the colonies and mother country led to a steady decline in the relationship between the two parties.
