The United States would probably research British jet and turbine developments before implementing them from about 1940. That path could leave Japan facing a still larger technological gap against both the United States and Britain. Japanese leaders might postpone conflict, choose targets more selectively, or place greater value on access to German technology. These choices lie more than a decade beyond the initial divergence, so the outcome remains unresolved without much more war-gaming.
Notable Point · 1:37:35-1:39:24
A wider Pacific technology gap complicates Japanese strategy
American adoption after 1940 could deepen Japan's disadvantage and encourage delay, narrower targets, or a stronger search for German technology.