The scenario treats American isolationism as a contingency to prepare for rather than a prediction or political endorsement. It stays with short-term maritime security, operational needs, and procurement because longer chains of consequences soon become speculative. Australia, Britain, and Canada face different problems, and each retains capabilities that would become more valuable after an American withdrawal. Even an unlikely alliance shock warrants practical preparation.
Chapter · 0:45-5:06
Defining the isolationist-America planning case
The opening defines a five-year worst-case exercise focused on the naval and maritime choices facing Australia, Britain, and Canada.