I just looked it up again. The ad was in my local paper and The New York Times. The fares in the ad are from LaGuardia but I bet they are running similar promotins.
The Military part -- In Bold letters it says "Active military personnel and their eligible dependents can save even more with special military fares. Call US Airways or your travel consultant for details.
The phone number in the ad for making reservations is 1-800-428-4322.