The best way to understand the seemingly reckless, recurring threat of nuclear war on the Korean Peninsula is this: the East Asian region is being run like a Mafia protection racket. And the criminal Mafia is the US.
The conflict emanates from Washington and is perpetuated by Washington. Why? To justify what would otherwise be seen as simply outrageous US militarism in the Asia Pacific hemisphere, and in particular a criminally aggressive agenda towards the main geopolitical targets of Washington – China and Russia.