For now we must continue to strengthen our sanctions and pressure on North Korea.

North Korea continues to advance its nuclear technology and will soon reach weaponization. Regarding its intercontinental ballistic missiles, it is continuously making progress. So currently, it is urgent for us to freeze North Korea's program so they will stop additional provocations and stop advancement of its technologies. I believe during my upcoming summit meeting in the U.S. I will be able to discuss a two-phased approach to the North Korean nuclear issue - the first being a freeze and the second being complete dismantlement.

As long as North Korea continues its provocations, I believe that we will have no choice but to apply additional and strong pressure on it. At the same time, it is also important to send out a message to North Korea that if it decides to denuclearize and to come to the negotiating table, then we are willing to assist them.

Every time North Korea commits an additional provocation, the U.N. Security Council passes another resolution. But when it comes to dialogue, currently there is nothing set. I hope to have frank and open discussions with President Trump on this issue.

Kim Jong Un is an unreasonable leader and a very dangerous person. Yet he is the person who has effective control over North Korea, and he is the person who has the authority to denuclearize North Korea.

The message that we must send to North Korea is twofold: If the North Korean regime believes that it can defend and protect itself through nuclear and missile programs, that is a misjudgment. But if North Korea gives up its nuclear program, we will help it secure and develop itself. We must consistently send these two messages.

Korea and the U.S. have maintained a combined forces command system for a long time. Even if we were to get operational control back, as long as this combined system is maintained, our countries will continue to have combined security, and U.S. forces will continue to play their part in our security.