South Korea will drop the symbolic tag of “main enemy” for North Korea in its biannual defense white paper, an official said on Thursday, even though Pyongyang has threatened to reduce its neighbor “to ashes”. “Not using the term ‘main enemy' does not mean that we changed our stance. North Korea is still a substantial and present threat,” said Major Seo Young-suk, an official in the Defense Ministry's public affairs office. Seo said the white paper, which is due out around December, is not based on political relations between the two Koreas but is an assessment of South Korea's general military situation.