What does the A's mean in the Second Season?

It took watching StrikerS before I finally figured out what the A's meant. For the longest time, I figured it must be short for Allies. However, I think it was Fate T. Harlaown who described to Teana (I believe) that there are Aces, the best of the best in regards to aerial combat, but there's also the Strikers that are the best of the best in terms of ground forces.

So, just so you don't have to suffer years of not knowing what the hell the A's stood for, now you know beyond a doubt, and so do I!

Thanks! Good to know.