Preemptive U.S. military air or missile strikes to take out North Korean nuclear and missile sites are unlikely to end the nuclear threat, and there is a high risk of deadly counterattacks that could draw China and the entire region into war, say these analysts.
Cirincione elaborated by saying that no ballistic missile defense system in existence can even reach the height which the North Korean missile test achieved, according to Defense One.
Plant believes that "North Korea has successfully produced a miniaturized nuclear warhead but question remains if its missile technology could survive a launch into space, and subsequent re-entry to hit an intended target", Plant told Newsweek.
As North Korea continues to test a series of intercontinental missiles and payloads, and as the U.S. continues to respond by unleashing "fire and fury", the Pentagon is said to be rethinking how to respond to such missile launches.
Mattis also confirmed that he and his South Korean counterpart had recently discussed the possibility of putting USA nuclear weapons back into South Korea, an option that has been raised publicly by some South Korean politicians.
In the wake of the United Nations speech, in which Trump additionally hinted that he will tear up the 2015 nuclear deal with Iran, Mattis was left with the unenviable task of reassuring nervous allies in Asia and Europe about the administration's intentions in North Korea and how it might deal with Iran if it again pursues a nuclear weapon.
"Our Defense Ministry said there has been no communication with the US defense secretary regarding his remark".
"The bottom line is that in the missiles, were they to be a threat, whether it be the USA territory Guam, obviously Japan, Japan's territory, that would elicit a different response from us", he said.
Analysts say reintroducing nuclear weapons in the South, and deploying them in Japan for the first time, would likely legitimize the North's nuclear arsenal and justify its efforts to develop long-range ballistic missile deterrence.
Defense Secretary James Mattis on Monday revealed he has secret military options to strike North Korea - but he's not ready to reveal them publicly. He declined to predict the ultimate defeat of the Taliban, and instead said the United States hopes Kabul can eventually handle its own security, with USA and other foreign military advisers there "for years to come".
Two North Korean missiles recently flew over northern Japan.
During the speech, he also referred to Kim Jong-un's regime in North Korea as "depraved", and called the leader "rocket man".
This came a day after US President Donald Trump threatened to "totally destroy" the Asian country.