Knowledge of our forces and capabilities? Heck, Amos, I just rounded up the first couple hundred folks who seemed vaguely interested in rescuing Khandu, drinking beer, riding horses, and general mayhem, though maybe not in that order. Betcha if I worked at it I could get several thousand from the Snake River Plain alone.

Have you ever thought that perhaps Khandu doesn't WANT to be rescued? Maybe he's got some hotsy honeys to serve him the Black Label and hot dogs and he's happy where he is.