"It was an incredible adventure for us cause I got to meet my grandson for the first time,” Lewis said.
Late Tuesday, Lewis heard of North Korea’s threats to target the tiny island.
"My first inclination was to be stressed out. However, I got right on my phone and texted my son to see how things were,” Lewis said.
Lewis said her son forwarded her a letter the governor of Guam had sent out, reassuring there was no imminent threat.
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"I have full confidence in our president that he has got my son's back so, I'm honestly not stressed because I know that our military is prepared,” Lewis said.