One 2006 view on the subject:
"The launching of an outright war using nuclear warheads against Iran is now in the final planning stages. Coalition partners, which include the US, Israel and Turkey are in "an advanced stage of readiness". Various military exercises have been conducted, starting in early 2005. In turn, the Iranian Armed Forces have also conducted large scale military maneuvers in the Persian Gulf in December in anticipation of a US sponsored attack.
Since early 2005, there has been intense shuttle diplomacy between Washington, Tel Aviv, Ankara and NATO headquarters in Brussels. In recent developments, CIA Director Porter Goss on a mission to Ankara, requested Turkish Prime Minister Recep Tayyip Erdogan "to provide political and logistic support for air strikes against Iranian nuclear and military targets." Goss reportedly asked " for special cooperation from Turkish intelligence to help prepare and monitor the operation."
Top Israeli officials have pronounced the end of March, 2006, as the deadline for launching a military assault on Iran....
The US sponsored military plan has been endorsed by NATO, although it is unclear, at this stage, as to the nature of NATO's involvement in the planned aerial attacks.
"Shock and Awe"
The various components of the military operation are firmly under US Command, coordinated by the Pentagon and US Strategic Command Headquarters (USSTRATCOM) at the Offutt Air Force base in Nebraska.
The actions announced by Israel would be carried out in close coordination with the Pentagon. The command structure of the operation is centralized and ultimately Washington will decide when to launch the military operation.
US military sources have confirmed that an aerial attack on Iran would involve a large scale deployment comparable to the US "shock and awe" bombing raids on Iraq in March 2003:
American air strikes on Iran would vastly exceed the scope of the 1981 Israeli attack on the Osiraq nuclear center in Iraq, and would more resemble the opening days of the 2003 air campaign against Iraq. Using the full force of operational B-2 stealth bombers, staging from Diego Garcia or flying direct from the United States, possibly supplemented by F-117 stealth fighters staging from al Udeid in Qatar or some other location in theater, the two-dozen suspect nuclear sites would be targeted.
Military planners could tailor their target list to reflect the preferences of the Administration by having limited air strikes that would target only the most crucial facilities ... or the United States could opt for a far more comprehensive set of strikes against a comprehensive range of WMD related targets, as well as conventional and unconventional forces that might be used to counterattack against US forces in Iraq
In November, US Strategic Command conducted a major exercise of a "global strike plan" entitled "Global Lightening". The latter involved a simulated attack using both conventional and nuclear weapons against a "fictitious enemy".
Following the "Global Lightening" exercise, US Strategic Command declared an advanced state of readiness.
While Asian press reports stated that the "fictitious enemy" in the Global Lightening exercise was North Korea, the timing of the exercises, suggests that they were conducted in anticipation of a planned attack on Iran.
Consensus for Nuclear War
No dissenting political voices have emerged from within the European Union.
There are ongoing consultations between Washington, Paris and Berlin. Contrary to the invasion of Iraq, which was opposed at the diplomatic level by France and Germany, Washington has been building "a consensus" both within the Atlantic Alliance and the UN Security Council. This consensus pertains to the conduct of a nuclear war, which could potentially affect a large part of the Middle East Central Asian region.
Moreover, a number of frontline Arab states are now tacit partners in the US/ Israeli military project. A year ago in November 2004, Israel's top military brass met at NATO headquarters in Brussels with their counterparts from six members of the Mediterranean basin nations, including Egypt, Jordan, Tunisia, Morocco, Algeria and Mauritania. A NATO-Israel protocol was signed. Following these meetings, joint military exercises were held off the coast of Syria involving the US, Israel and Turkey. and in February 2005, Israel participated in military exercises and "anti-terror maneuvers" together with several Arab countries."
-- Michel Chossudovsky/Global Research website