The policy of strategic patience has ended. –Secretary of State Rex Tillerson
Donald Trump and Kim Jong-un are both unpredictable and therefore dangerous. Rex Tillerson is new to his job. Tillerson says US policy has failed in Korea, but I think not–war has been avoided for fifty years which is hardly failure. Defense Department and State Department experts may know how Kim is likely to respond to threats, but are Trump and Tillerson listening? How much does Kim know about Trump? Probably not much.
War in Korea would be a humanitarian catastrophe. Seoul is a city of more than ten million; war would likely cause panic there. Tokyo might be attacked. War is never easy or cheap.
What was accomplished by war in Afghanistan? What good was done by war in Iraq? Who anticipated the damage done by unexpected weapons, IEDs for example? What good could possibly come from war in Korea even if it caused the rapid collapse of the North Korean government? What is our exit strategy? What might the Koreans do to thwart our plans?
New NY 23rd 
Trump has been preparing us for a war. A threat of war makes us (him) look strong. War, or a possible war, justifies expanding the Military and cutting domestic agencies and programs. He hopes that War will bring our country together. More importantly War will create jobs and profits to military industries. War will make America Great Again.
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I hope you are wrong. How did wars in Viet Nam or Iraq serve to “bring our country together?” A drive toward war puts the Chiefs of Staff in a tough position. Will we see senior officers resigning or being replaced as before GWB’s adventure in Iraq?
Not tho’ the soldier knew
Some one had blunder’d:
Theirs not to make reply,
Theirs not to reason why,
Theirs but to do & die…–Alfred, Lord Tennyson
http://www.nationalcenter.org/ChargeoftheLightBrigade.html#sthash.4Olv0YfR.dpuf
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