Starship Troopers 1 wasn't anti-war at all. Yeah it did backfire. BIG TIME.
I don't have a SST 1 DVD so I can't get commentary. Hmmm... maybe I ought to get it.
Starship Troopers 2 was made on a VERY tight budget and was something that really had to be worked out to fill a demand to which there was no supply. It wasn't a very good movie at all if you treat it as a movie. It's more like a tie in between 1 and 2. It's not related but a 10 year wait is a little bit on the long side.
Starship Troopers 3 was also made on a very tight budget so the graphics at points in the movie do look a little dated but if you don't let that bother you, it's pretty damned good! And it attempts to bridge the gap between the book and the movie.