“The threat is much more immediate now and so it’s clear that we can’t repeat the same approach – failed approach of the past,” said McMaster, noting that the definition of insanity is to do the same thing they’ve been doing for years and expect a different result.

Trump is scheduled to meet with recently-installed South Korean President Moon Jae-in on Thursday for dinner before formal discussions regarding the South’s troubled neighbor begin on Friday, according to a report from Fox News.

“Together we will achieve the dismantlement of North Korea’s nuclear program, peace on the Korean Peninsula and eventually peace in Northeast Asia,” said Moon, who previously had advocated for a softer approach to the communist dictatorship.

In an apparent change of heart, it’s been reported that Moon has told reporters that it’s time to get tough on dictator Kim Jong Un, calling the man “unreasonable” and “very dangerous”. He has said that sanctions alone won’t be enough, and dialogue “under the right conditions” needs to be involved.

On Wednesday, it was reported that the North Korean leader wants to execute Ex-South Korean President Park Geun-hye and former spy chief Lee Byoung Ho.

Trump’s talks with Moon will likely include a discussion about South Korea’s delayed implementation of the THAAD missile defense system, which would protect South Korea and the 28,000 U.S. forces on the peninsula.

Outrage over last week’s death of college student Otto Warmbier, who was detained for 17 months in North Korea after being accused of stealing a propaganda poster and returned home in a coma, has added fuel to the fire; especially because there are three other Americans and six South Koreans are still being held by the rogue regime.