Yes, it could potentially kindle nationalistic sentiments in Japan that would increase the movement to oust American troops from the nation, and eventually rupture the alliance. Many analysts view the push to rewrite the constitution as the first step down that slippery slope.
Thank you for your response. I meant more along the lines that it would be a direct violation of the requirements of our alliance.
I personally wouldn’t be surprised if they have the parts and material in warehouses to construct a 200 ship fleet in the matter of a year if they needed to.