"We've got some 192 aircraft; 150 are rotary wing, 42 are fixed wing," State Department spokesperson Victoria Nuland told reporters.
"The vast majority support our international narcotics and law enforcement affairs, counternarcotic and law enforcement assistance programs, specifically in Colombia, Peru, Bolivia, Guatemala, Afghanistan and Pakistan.
"So, primarily we use these for those programs. We also use them to move our personnel around safely in Afghanistan and in Iraq," she said.