Planning for eventualities that may have a negative impact on US corporate interests is S.O.P. for the Department of Defense (aka the War Department). It is no surprise, then, that Secretary Leon Panetta told the National Journal, "The Pentagon is preparing an array of military options for striking Iran if hard-hitting diplomatic and economic sanctions fail to persuade Tehran to drop its nuclear ambitions." 
Diplomacy with Iran is proceeding on the order of that well-worn example of sophistry where the prosecuting attorney asks the defendant, "Have you stopped beating your wife? Yes or no?"
Even though both Obama and Netanyahu face opposition to a war on Iran within segments of their own military as well as from their civilian populations and intelligence personnel have concluded that there is no evidence that Iran is going after the bomb , preparations for war have been moving steadily forward, keeping the propaganda machinery working overtime.
The imposition of sanctions are supposed to force Iran to the negotiating table. While they undermine Iran's ability to defend itself as sanctions did in Iraq's case, they also allow time to put all the pieces in place as US elections go forward.
Almost 10,000 US forces have already been deployed to Israel -- for the first time ever. Obviously, to beef up Israeli defense capabilities. The military forces of both countries will engage in preliminary exercises to insure smooth operations at a later date. In addition, the Israeli Defense Forces now have a base in Germany from which to operate. 
The Navy's Fifth Fleet's area of operation from its base in Manama, Bahrain, is the Persian Gulf, both the Red and Arabian Seas, and part of the east coast of Africa. The USS Enterprise, the aging nuclear-powered aircraft carrier, has been dispatched to join two other carriers in the Gulf. Two guided-missile destroyers are ready to be dispatched soon to also join the Fifth Fleet. 
In looking back over the last months, it is now evident that much of Netanyahu's tough talk about launching an assault on Iran was a lot of bullying bluster. Israel has not had this capability because its planes could not carry enough fuel to fly over Iran and make it back. The US will remedy this deficiency by supplying planes that can be refueled in mid-air.
The fact that Bibi has no bunker-busting bombs has also been a problem. Sources report that Secretary of Defense Leon Panetta, who gave his own speech to AIPAC last week, will send over our latest advanced bunker-busters that may have enough fire power to reach the many underground laboratories scattered around Iran.