Gov. Sarah Palin cites vigilance against Russian warplanes coming into U.S. airspace over Alaska as one of her foreign policy credentials. But the U.S. military command in charge says that hasn't happened in her 21 months in office.

The spokeswoman for the McCain-Palin campaign, Maria Comella, clarified in an e-mail to The Associated Press that when "Russian incursions near Alaskan airspace and inside the air defense identification zone have occurred ... U.S. Air Force fighters have been scrambled repeatedly."

However, no Russian military planes have been flying even into that zone, said Maj. Allen Herritage, a spokesman for the Alaska region of the North American Aerospace Defense Command, at Elmendorf Air Force Base.

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