The US-led Operation Epic Fury (Operation Roaring Lion in Israel), co-conducted with Israeli military forces (IDF), provided North Korea with useful lessons about America’s capability to attack a state with limited deterrent capabilities. For Pyongyang, it was a test case that illustrated what might happen if President Donald Trump ever decided to attack North Korea’s nuclear and missile capabilities and its leadership. The war between the US, Israel, and Iran will likely force Kim Jong-un to reevaluate North Korea’s security policies.