The Pentagon’s May 18 decision to pause U.S. participation in the Permanent Joint Board on Defence should not be treated as a routine bureaucratic dispute. The board is old, but not irrelevant. It sits inside the history of Canada–U.S. continental defence and carries symbolic weight beyond its meeting schedule.
The United States framed the pause as a response to Canada’s failure to make credible progress on defence commitments. That explanation may be partly true, but it is unlikely to be the whole story. The timing matters. The decision lands just weeks before the review of the Canada-United-States-Mexico Agreement, known in Washington as USMCA and in Canada as CUSMA, begins on July 1. It also comes as the United States reorganizes defence policy around homeland security, Western Hemisphere control, allied burden sharing, and deterrence of China.
