One thing I will say about Invasion USA is that when the action gets going it doesn't let up. It's like watching an Indiana Jones movie that way.
The Russians have decided that the way to conqer Ajmerica is to spread naked terror. So several landing craft land one night in Florida and terrorists disembark.
The idea is to spread chaos and mayhem with attacks on civilians in places that
they congregate.
We however have Chuck Norris on our side, a mysterious agent who has some
history with the terrorist Commie leader Richard Lynch. So whrever they
strike in the Miami area, Norris is johnny on the spot and does them n at a prodigious rate.
Surprisingly for a Chuck Norris film little martial arts is used except in the end
with his final confrontation with Lynch.
It's cinem paranoia at its finest. The best acting is done by Norris's pet
armadillo.