Tests of North Korea's own missile suggest that now, the island is within the range of Pyongyang.
"Definitely, I know Guam is a pretty good target because it's important to the US because of the military", she said.
The Pentagon said the United States and South Korea would proceed as planned with a joint military exercise in 10 days, an action sure to further antagonize North Korea.
Military officials say they plan to move ahead with large-scale U.S.
"Things will happen to them like they never thought possible, OK?"
While immediate confirmation of the reports was not available, Japan has in the past vowed to shoot down North Korean missiles or rockets that threaten to hit its territory. The fact sheet noted that if North Korea delivers its promise to fire a quartet of ballistic missiles at Guam, emergency response personnel would provide information to "take shelter, go to a specific location, or evacuate a specific area" via radio, news or online sources. "Fight tonight" has long been the motto of US forces in South Korea to show they're always ready for combat on the Korean Peninsula.
The analysis was said to have been completed on July 28 in a classified summary by the U.S. Defense Intelligence Agency (DIA).
"I don't see a military solution and I don't think it's called for", Merkel said Friday, calling on the U.N. Security Council to continue to address the crisis. "I feel safe with our military presence here - Andersen and the Navy". The U.S. took control of Guam in 1898, when Spanish authorities surrendered to the U.S. Navy.
August 21 solar eclipse requires safe viewing
Glasses or other solar filters also shouldn't be used if they're scratched or damaged, according to the astronomical society. Doctors say that watching the phenomenon without proper protection can cause serious eye damage or even blindness.
But there's also some resentment about not being able to vote in the general election for USA president. A huge red, white and blue ribbon is outside the airport terminal.
"They believe that we are not true USA citizens, when we do have plenty of Chamorro people going into the USA military and serving for their country and dying for their country", he said.
Guam is about 2,100 miles (3,380 kilometers) southeast of Pyongyang and 3,800 miles (6,115 kilometers) west of Honolulu in the Pacific Ocean.
But restraint was not the word of the day on Friday as Trump sent out a cascade of unscripted statements, including what appeared to be another red line - the mere utterance of threats - that would trigger a USA attack against North Korea and "big, big trouble" for Kim.
The majority of islanders are ethnically Chamorro - the indigenous group that has lived on the island for thousands of years - and their culture is a touchstone for the islander's way of life.
In August a year ago, the North's Foreign Ministry warned that all US military bases in the Pacific including Guam would "face ruin in the face of all-out and substantial attack" by the North's military.
Keeping up his tough talk from his New Jersey golf resort where he is on a working vacation, Trump warned Kim Jong Un's government to "get their act together" or face extraordinary trouble, and suggested his earlier threat to unleash "fire and fury" on North Korea was too mild.