I have to say I don’t blame the Japanese for their position on the French in Indochina here. Here they are readily admitting that they have large stores of munitions that are destined to the Chinese and being transported over rail to them. If I was in Japan’s position I’d let them know that I was taking the bridges out too so the supplies cant get to the men my army is fighting.
1. Did the material continue after the Japanese interdiction by air?
2. If so, were the lessons learned used 20-30 years later?
My guess is "yes" to both.