Passage: Red Dawn is a 2012 American war film directed by Dan Bradley. The screenplay by Carl Ellsworth and Jeremy Passmorea is a remake of the 1984 film of the same name. The film stars Chris Hemsworth, Josh Peck, Josh Hutcherson, Adrianne Palicki, Isabel Lucas, and Jeffrey Dean Morgan. The film centers on a group of young people who defend their hometown from a North Korean invasion.

Question: What country were they trying to protect?
North Korean