Five Eyes

Overview
Five Eyes consists of the intelligence communities in Australia, Canada, New Zealand, the United Kingdom and the United States. While this cooperative relationship is not monolithic, it is certainly more cohesive than is generally understood.

It grew from UK-US intelligence cooperation in the Second World War, matured during the Cold War, and continues to protect the national interests of all members today. The evolving international security environment indicates a need for enhanced Five Eyes intelligence cooperation in the future.

Source

 * Canadian International Council, "Canada and the Five Eyes Intelligence Community" (Dec. 18, 2012) (full-text).