High rank US generals strongly warned North Korea not to attack Guam.

High rank US generals strongly warned North Korea not to attack Guam.
US Generals said "If North Korea tries to attack Guam, North Korea will be severely damaged. USA will supply all the necessary weapons to protect South Korea."

I want to translate "Severely damaged" into "Disappear from the Earth".

http://news.joins.com/article/21864072