I think whoever started this thread got it the wrong way round; you see, the PHALANX is not supposed to be an elite army but rather a strange concoction of old weaponry, whatever the countries/blocks could (willingly) spare and a very tight budget. It's the last stand, yes, but as with everything else in real life, it's bound by international laws and politics (and their own nasty schemes and avarice). Some politicians and/or military men are secretly hoping PHALANX will fail. Others just want to make a profit out of the whole deal. It's the way of life.
Just look at the US and their two-faced approach to environmental laws; everybody knows they're the lead contributors to an incoming disaster, corrupt/imoral men like senator Kerry will say to the press that something's being done while behind the scene they're all plotting to keep on polluting the planet for profit.
Why do you think it should be different if/when the aliens invade Earth?
*EDIT* Lol, this is looney talk. Just so you know, I'm aware there're no aliens about (at least not to my knowledge) and this is all an allegory.