It was supposed to be satire, but didn’t pull it off very well. Nevertheless some of the allegorical stuff still works - the “federation”, “become a citizen”, and mostly the bad military intelligence that caused troops to be sent off to fight in a foreign land only to get slaughtered before they even landed.
The attempted satire was kind of my point. The movie basically mocked the very ideas Heinlein’s book supported - patriotism, duty to country, etc..