A U.S. expert has warned that the risks and costs of a military strike against North Korea are just too high and that President Trump should not underestimate such factors.
In an op-ed in the New York Times on Wednesday, Barry Posen, a professor in MIT's political science department pointed out even if a first strike knocks out North Korea's nuclear sites, the North may retaliate with conventional or chemical weapons, putting millions of civilians and soldiers in danger.
He added preparing a surprise attack would be almost impossible and it's also difficult to estimate how many bombers would be needed to take out North Korea's military bases.
In addition, Posen stressed any nuclear attack would make the United States an international pariah.
He said a first-strike nuclear option shouldn't even be on the table and that diplomacy and deterrence are the best option.