A healthy dose of Skepticism is needed in the era of information wars. I don't think it was a DEW, but I'm not 100% against the theory. I think it was arsonists, just like Canada & Greece. I do think it is a war though to bring down the West. It's plain as day to see the difference between the USA & Europe vs Japan. Japan is the most advanced & Westernized Asian country, but is suffering very little of the same war against the former.
The main thing that troubles me is the way things burned, leaving some structures & plants while completely turning nearby things to ash. That is definitely suspicious.
Great comment, thank you very much!