Corrected entry: Throughout the movie, the Sergeant refers to themselves as the "US National Guard". It is simply "National Guard". The National Guard does not belong to the US as a whole, but to the states. The US Army is the federal government's military force.
Phixius
14th Aug 2007
Correction: The Sergeant means "US National Guard" to stand for the United States' National Guard. Apostrophe appearing after the "s" to denote the the plurality of the noun. I know several people currently in the National Guard, and they have all referred to it like this on several occasions.
Phixius ★