Israeli assault on GazaNovember 16, 2012
For all it’s bluff and bluster, the only real strategic military options that Iran has are Hamas and Hezbollah. If Israel or the US attack Iran’s nuclear facilities, the main retaliations will come first via an attempt to close the Straits of Hormuz and second via attacks by Hamas and Hezbollah. It is only the latter that directly impacts Israel.
For that reason, it seems to me that an Israeli assault on Gaza would be a necessary (though not sufficient) precursor to a strike on Iran.