This only makes sense if you need to get something rare somewhere quickly (like people who are experts). Otherwise you airlift from the nearest US base. The fuels that work best for this have to be kept cold, so you take a long time fueling them up, or keep them siloed fueled and ready. Maybe there is some new solid rocket propellant? Oh yeah and you might set off some "America's doing a preemptive Nuke strike" alarms.