Meanwhile, the envoy repeated the president's explanation, given during last week's phone talks with Abe, that most South Korean people can not accept the deal at an emotional level.
The launch of the missile has given the nation's leader Kim Jong Un a superior power over the rest that stand against the country including the United States of America and North Korea as well.
Also in attendance at the meeting were Vice President Mike Pence, National Security Advisor H.R. McMaster and Trump's son-in-law and senior adviser, Jared Kushner. "Fourth, to achieve these goals, South Korea and the United States will pursue drastic and practical joint approaches". During the campaign Moon was quite critical of the deployment of the THAAD system. The two countries agreed to hold a summit between Moon and Trump in Washington in late June.
US Ambassador Nikki Haley said the United States was working with China, Pyongyang's main ally, on a new sanctions resolution and warned that all countries must step up action against North Korea or face measures themselves. "President Trump generally talked about the bigger picture, emphasizing that we can achieve an outcome through unity in our sturdy alliance and worldwide cooperation".
People living in South Korean capital Seoul would essentially have zero to six minutes - from the moment a missile is launched to the time it hits the target - to take cover in the event of a strike.
In his 40-minute talks with McMaster, Hong underscored that Korean conservatives and liberals all stand in unity in terms of security issues.
China for its part has been infuriated by the US deployment of an advanced Terminal High Altitude Area Defense (THAAD) anti-missile system in South Korea, saying it was a threat to its security and would do nothing to ease tension with Pyongyang.
In Seoul, some citizens expressed frustration.
But he has said the North must change its attitude of insisting on pressing ahead with its arms development before dialogue is possible.
However, South Korea's new president Moon Jae-in wants to engage with the North and soothe tensions between the United States and China. He called for bilateral working-level talks on this.
Mainstream historians say up to 200,000 women, mostly from Korea but also China and other parts of Asia, were forced to work in Japanese military brothels during World War II. Haley said that the USA and China are working together on a new resolution targeting North Korea:"That's what we are working on now".
Hong's words are seen as an effort to alleviate any worries within the U.S. government about the new Moon administration's policy on North Korea and the South Korea-U.S. alliance.
Another carrier, the Ronald Reagan, left Yokosuka in Japan on Tuesday on its regular spring patrol, which would last three to four months, a spokesman for the U.S. Seventh Fleet said.
Wood TV recently published an article that details out why the successful launch of this missile is looked upon as a big worry for North Korea's neighbours and especially Washington D.C.'s Donald Trump.
South Korea's unification ministry expressed a need to reopen an inter-Korean communication hotline, which was severed early previous year following North Korea's nuclear and missile tests.
South Korea's new President Moon Jae-In dispatched Lee to Beijing in the wake of his election victory last week.