Mullen: US Action in Iran Last Resort

Defense Secretary Robert Gates awaits the arrival of Afghanistan's Defense Minister Abdul Rahim Wardak, Thursday, Oct. 18, 2007, outside the Pentagon. (AP Photo/Heesoon Yim) (Heesoon Yim - AP)

WASHINGTON -- While military action against Iran is a last resort, the U.S. has the resources to attack if needed despite the strains of wars in Iraq and Afghanistan, the top U.S. military officer said Thursday.

Navy Adm. Michael Mullen, the chairman of the Joint Chiefs of Staff, said the focus now is on diplomacy to stem Iran's nuclear ambitions and its support for insurgents in Iraq.

But, he told reporters, "there is more than enough reserve to respond (militarily) if that, in fact, is what the national leadership wanted to do."

Defense Secretary Robert Gates said Iran's acquisition of nuclear weapons could set of an arms race in the Middle East. "The risk of an accident or a miscalculation or of those weapons or materials falling into the hands of terrorists seem to me to be substantially increased," he said.

Appearing together before reporters for the first time since Mullen became chairman on Oct. 1, they expressed concern about Iran and Turkey _ hot spots commanding attention even as the military focuses on the fighting in Iraq and Afghanistan.

Both leaders warned of serious repercussions if Congress were to pass a nonbinding resolution labeling as genocide the killing of up to 1.5 million Armenians in the final years of the Ottoman Empire, around World War I.

"I don't think the Turks are bluffing. I think it is that meaningful to them," Gates said. "I think there is a very real risk of perhaps not shutting us down" in terms of access to Turkish airspace for resupplying U.S. troops in Iraq, but of at least restricting it.

"I will say again it has potential to do real harm to our troops in Iraq and would strain _ perhaps beyond repair _ our relationship with a key ally in a vital region and in the wider war on terror," the Pentagon chief said.

At the same time, Gates said the U.S. and the Iraqis are "prepared to do the appropriate thing" in acting against the rebel Kurdistan Workers' Party, or PKK, that has conducted raids into Turkey from northern Iraq.

The Turks have expressed frustration about the lack of action by the U.S. against the group. Gates attributed that largely to a lack of specific intelligence.

The Turkish parliament this week authorized the government to send troops across the border to go after the Kurdish rebels, despite repeated pleas from Washington to focus on diplomatic efforts.

Gates also said he believes that Russian President Vladimir Putin is serious about trying to play a constructive role in resolving the crisis over Iran's nuclear program.