And consume 50% of global coal production.

But coal is the worst fossil fuel from a practical stance. It's really only good for energy generation. You can't really power tanks or warships with it.

Oh, you can convert coal to liquid fuels if you have to. Germany produced low single digit millions of tons per year during World War 2.

https://en.wikipedia.org/wiki/Bergius_process

https://en.wikipedia.org/wiki/Fischer%E2%80%93Tropsch_proces...