North Koreas latest ballistic missile brinkmanship is not the first time it has provocatively sought to test the mettle of a US president.
Bill Clinton and George W. Bush concluded a deal giving North Korea economic aid in return for its false pledges: halting its nuclear program or dismantling its nuclear facilities.
And during Barack Obamas presidency, a doctrine of strategic patience was little more than hand-wringing, appeals for Chinese help, and ineffective sanctions.
Far from cowed by anything Mr Obama did, the North Korean leader is being far more aggressive about the development and testing of nuclear weapons and missiles than his father.
The Australian emphasizes that Donald Trump, faced by his first real global test as President, must do better and suggests persuading China to influence Pyongyang is the key.
The choices are not easy. Mr Trump must meet the challenge and help to persuade North Korea to cease its provocations.
