The U.S. island territory of Guam in the Pacific Ocean.<br/> <br />The latest battleground in the war of words between the U.S. and North Korea.<br/> <br />On Wednesday the Pentagon announced it will deploy a ballistic missile defense system to Guam in the coming weeks.<br/> <br />It's in response to threats from Pyongyang of a nuclear strike on the U.S., including missile attacks on its Pacific bases on the island.<br/> <br />The U.S. missile defense system headed for Guam would include tracking radar and interceptor missiles.<br/> <br />Hours after the announcement from the Pentagon, South Korea's Yonhap news agency said the North had moved what appeared to be a mid-range missile to its east coast.<br/> <br />It's believed to have a reach long enough to put all of South Korea and Japan in range, and possibly Guam as well.<br/> <br />Pyongyang has threatened such nuclear strike on the U.S. before.<br/> <br />It's not clear if the North plans to fire the rocket it has moved to its east coast, or is simply putting it on displ