The Pentagon is preparing to provide military support to French forces in their new fight against rebel militants in northern Mali, according to senior defense officials.

The U.S. is considering a range of options to help, including sending cargo aircrafts to lift more French ground troops into Mali, providing air refueling tankers for French air combat patrols, and offering intelligence gleaned from aerial surveillance.

Fox News also has learned that the U.S. sent Special Forces to train Mali troops last year prior to the northern region of the country falling to Al Qaeda-linked militants. One

senior military official told Fox News he was wondering "why they didn't get a better return on their investment."

Earlier Monday, Canada announced its intent to send a C-17 military transport plane to assist with the French campaign. The Canadians were careful to say their role will not include direct involvement in the conflict and that the aircraft is on loan for one week.

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