Japan builds Aegis destroyers based on US blueprints. They’re not ABS standard, but are essentially the same as US Navy ships.
..I lived in Sasebo, Japan on the island of Kyushu from 1969-1971. So, I know just a tad more than the average person about Japan. As a result, I can say that in my opinion the last thing the Chinese are going to do is F with Japan much more than they already are. The Japanese, at their core, are warriors and the Chinese are not. Samurai ethos is not dead in Japan. Japanese will fight the Chinese man for man and man to man to the last soldier....remember Iwo Jima! And, the Chinese know that, they are not stupid and have little history that I know of regarding launching major military invasions against MAJOR opponents that might kick their ass.
So, there never going to be an invasion of mainland Japan by the Chinese for that reason.
I’m no admiral but I think two aircraft carriers in the hands of the Japanese would last about as long as there WWII carriers when the shooting starts. They would be better advised to arm every man, woman and child in the country and train them plus update their nukes that few think they have but they surely do. Then, “Marines” by the several divisions and they should be in pretty good shape.
Who leads the world in electronic technology production? The Japanese will kick the Chinese paper giant’s ass if war broke out......rather like the Israeli’s have done to the Jihadi’s in 3 or 4 all out wars and hundreds of small unit fights.
The JFK is still sitting here at Philly...
True, they have even more serious personnel problems than we do. They should start from scratch on a design. As I recall, their shipbuilding capabilities were pretty good...:). And I’ve read that the military equipment that they build for themselves (and cannot sell on the world market) is absolutely first-class.