“Guam is very heavily protected by missile defense systems at sea and also on the ground,” said retired Army Lieutenant General Patrick O’Reilly. “They are very proven missile defense systems.”
As for the four ICBMs—potentially containing mini-nuclear warheads—that North Korea has threatened to launch at the United States, O’Reilly said they do not constitute a major threat.
North Korea “would need an awful lot more than four [ICBMs] to be a serious threat to us,” he said.
What does Guam have to defend against ICBMs?
According to O’Reilly, a physicist who led the U.S. Missile Defense Administration (MDA) and has worked in the field for more than 30 years, there are two missile defense systems (MDS) in and around Guam that will shield the U.S. island territory from attacks.
One of them is the Terminal High Altitude Area Defense (THAAD), a land-based system currently deployed in Guam.
The MDA’s website states that THAAD is “highly effective” against asymmetric ballistic missiles both inside and outside the atmosphere.Read more at CNSNews