She noted that the essence of the nuclear issue on the Korean Peninsula is a security issue, and the core is conflict between Pyongyang and WashingtonAccording to Hua, China has strictly an乐投国际体育登录d comprehensively implemented UN Security Council resolutions, and has made "enormous sacrifices at a great price"The ROK's military said it conducted a live-fire drill by mobilizing Hyunmoo-2A ballistic missiles about six minutes after the DPRK's missile launchHua also said it is "irresponsible" to blame Beijing for regional tensions after US Secretary of State Rex Tillerson called on China to use the "powerful tool" of oil to persuade Pyongyang to reconsider its "current path"In the longest flight for a DPRK missile, it reached 乐投国际体育登录an altitude of about 770 kilometers and flew for about 19 minutes over a distance of about 3,700 km, according to the Republic of Korea's military — far enough to reach the US territory of Guam, Reuters reported"However, whatever China does will not fundamentally solve the issue," he said