Article 2 of the mutual defense treaty between the U.S. and the Republic of Korea signed at the end of the Korean War in 1953 says that “The Parties will consult together whenever … either of the Parties is threatened by external armed attack,” and “will take suitable measures in consultation and agreement.”
Moon said the U.S. remains obligated to first consult with the South, but analysts cited in an Aug. 20 report in the Washington Examiner said that there is little Seoul can do to stop Trump from authorizing a pre-emptive strike against the North if he does so in the name of protecting the U.S. homeland and its territories. ..
“We have a U.S.-ROK military alliance in which under existing protocols and doctrine military action has to be approved by both presidents.” ..If U.S. intelligence determined the North’s Kim Jong-Un was planning to launch a nuclear weapon at the American mainland, Trump could authorize a pre-emptive strike without the approval of Seoul,.. “
If the U.S. president did move unilaterally in a circumstance like that, against the [wishes] of a South Korean president, the U.S.-ROK defense alliance would be over in a heartbeat,..“There will be a war with North Korea over their missile program if they continue trying to hit America with an ICBM. He’s told me that, and I believe him.” As devastating as a second Korean War would be, the commander in chief believes “if thousands die, they’re going to die over there. They’re not going to die over here,”..