Why do we need to invade Iran though? Why can't the US and/or Israel just use airstrikes on the nuclear facilities?
1) we don't know where all the nuclear facilities are, the extent of nuclear weaponisation (they may be prepared to retaliate with unproved weapon systems)
2) attack on iran --> iran activates its terrorist networks worldwide (new intafada in israel, attacks in certain western countries) and islamist movements worldwide gain momentum
3) liberal european fuckheads would whine about it, and i don't know whats worse - that or iran getting nukes.
4) iran would retailiate with conventional weapons on nearby US military facilities (afghanistan, iraq, saudi arabia, kuwait, etc.) and most likely on israeli civilian targets. we've never conducted a surgical strike on a country with iran's retaliatory capabilities (and psychopathic leadership)
5) resultant chaos in oil markets --> economic mayhem for everyone
and lots of other reasons why this is a terrible, terrible idea