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

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.

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.

It seems Kim Jong Un firmly believes that developing nuclear missile capabilities will provide security and guarantee his regime. We must make it clear that it is not nuclear and missile programs that will protect Kim Jong Un and his regime. The goal of the international sanctions and pressure is to make it unbearable for Kim Jong Un if he does not accept this fact. On the other hand, we are continuously trying to send a message that giving up its nuclear program and coming to the negotiating table is the right path for North Korea to protect itself and achieve its development.

When it comes to dialogue between South and North Korea and between the United States and North Korea, these can go on parallel tracks. South Korea and the United States can each play a role.

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.

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.