That's a fundamental misunderstanding of why they're going in on hydrogen so hard - it's something they can generate domestically and without geopolitical implications.

If there is a war with china or in the middle east, hydrogen vehicles are somewhat immune to oil or rare earth spikes.

They will likely never roll out hydrogen power in any large capacity but the capability will be there if they need it

If we get into an actual shooting war with China, I don't think there's enough hydrogen generating facilities to make much of a difference. If maybe 20% of vehicles on the road were using hydrogen, maybe?

Considering how much money and effort both Toyota and Honda have poured into trying to kick start a hydrogen economy over the past decade and a half, and how much EV technology was evolved over the same time span, would it not make more sense to switch to the technology that actually is proven and actually has consumer demand for?

It's not like they're switching all that military hardware to hydrogen too.

Japan can't solve all of its energy woes, but it can ease it a lot by restarting all the nuclear reactors they shut down after Fukushima, and to be fair, they've been trying [0], but stuff breaks after not having been used in over a decade.

[0]: https://www.bbc.com/news/articles/cq6v0v32rg1o

The drivetrain is still electric with hydrogen vehicles.