Although it did well at the box office, Invasion U.S.A. is one of the least interesting entries in Chuck Norris' filmography. The film's "communist invasion" premise is a serviceable one, but is quickly undone by its unfocused script. For instance, the villains' attack plan is impossible to understand (they seemingly attack buildings at random) and the film's main character doesn't become actively involved in the story until it is nearly halfway done. Characterizations are practically nonexistent; the villains have no real motive for their aggression other than just being evil and it is never explained what made Chuck Norris' ex-government agent character become a bitter recluse. There are plenty of action scenes but they are standard shoot-'em-up gun battles that deny Norris the chance to display his formidable martial arts skills. Invasion U.S.A. does boast a certain amount of technical polish thanks to the slick lensing of Joao Fernandes, and Jay Chattaway's rousing musical score, but these elements mean little when there is no story to get involved in. As a result, Invasion U.S.A. is unlikely to appeal to anyone except Chuck Norris' fan base.