Three. Body Snatchers in the 90's takes place on a military base and the surrounding town.
Hardly anyone saw it, but Forest Whitaker was excellent in it. Not as good as the other two but definitely a good paranoid SF horror flick.
Actually I had forgotten about that one...I also saw it, tho do not remember much about it...I especially like forest Whitaker, I think he is just one fine actor...I will have to remember to watch that one again, should it come up on TV...
Speaking of FW: He's brilliant in The Shield on FX.