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Following North Korea's successful test of an intercontinental ballistic missile, there has been speculation about how the Trump administration should respond.

In a Wednesday morning tweet, Trump expressed doubt that China, North Korea's biggest trade partner, will work with the U.S. and put economic pressure on dictator Kim Jong Un and his rogue regime.

On "Fox & Friends" this morning, national security expert Jim Hanson said an intercontinental ballistic missile "completely changes the game," because that means a North Korean missile could potentially reach the U.S.

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Hanson said it's fortunate that Trump is commander-in-chief because he brings a "credible threat of violence" to the diplomacy.

"It can't work without it," he said. "You have to have that iron fist in a velvet glove."

Former CIA analyst Fred Fleitz said we must acknowledge that a military conflict with North Korea is "probably inevitable," unless we take actions we have been reluctant to do.

"That means implementing sanctions that China has been blocking, such as cutting off all access to finance for North Korea," Fleitz said. "And also interdicting North Korean ships at sea to inspect them for WMD technology, counterfeit currency and drugs, and shooting down North Korea missiles."

Former CIA officer Buck Sexton agreed that we should pursue other options like tougher sanctions and diplomacy, but military options should still be looked at.

Watch more above.

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