In the most recent North Korean missile test, the distance that their new ICBM (intercontinental ballistic missile), the Hwasong-15, flew put the entire US in range of North Korea’s missiles. In addition to this, North Korea’s most powerful nuclear bomb has a yield of 120 kilotons. For comparison, the kilotons of power in both the Hiroshima and Nagasaki bombings combined is only 36.

“I’m not surprised that they eventually tested something like they did on Tuesday, I just thought they would try to better understand the Hwasong-14 and then move,” says Michael Elleman, an analyst for the North Korean watchdog group, 38 North, “Now they’ve just stepped straight up into the Hwasong-15.”