Propaganda to remind the japanese people that alien forces threaten to steal land from them, as the factual situation in the south china sea these days.
a low quality productin, mediocre acting with a 1955 warfilm style and with a hierakaik command line that makes the fleet commander god, and the cgi and vfx at a low standard, far lower than expected from the hi-tech country japan/nippon.
a big disappointment this is, the script mustve been written by a cyborg and directed by a computer robot. the grumpy old man gives a 2 for this far too longlasting bragging nationalism.