FQ, It was "Osirak" .
When the Israeli's hit the Syrian Nuke facility a couple years ago they owned Syria's air defense system through computer hacking, no one is quite sure exactly how they did it, but it is common knowledge that Syria was completely unaware of the fleets of IDF aircraft and helicopters in their airspace. These included ground forces who seized nuke materials, documents, and North Korean personnel.
Taking out the Iranian program would pose little challenge to the IDF, some of their options would include,
1 Hitting the reactors to remove the supply of fissionable material as with Iraq.
2 Hitting the enrichment facilities, it is known the Iranians are using thousands of high speed centrifuges to do this, even a bomb that did not penetrate the facility could throw these centrifuges out of balance and cause the facility to destroy it's self.
3 They have the ability to nuke Tehran removing the current leadership and generating a Japanese style horror of Nuclear weapons.
None of these require "boots on the ground".