really, for the army leadership, what's most important is, not the forward 90 but the rampdown to make sure we do not put ripples in the force and we have the ability, we have reversibility. if something happens between now and the next five, six years as we do this rampdown, that we have the capability to reverse that and bring that back up. there are many things we can do for it, and so we can start to put a lot of our mid-grade majors and lieutenant colonels back into the regenerating force. we need to pull them out, we can do so. it's just the amount of risk that the army leadership will want to take as we start to do the planning for this. >> the involuntary separation, ballpark proportion you might require for that? >> i wouldn't -- i would probably not even estimate, because, again, you're going to have retirements. there are so many tools in the tool kit. we can do retirements. can you do early retirements. you can assess, assess less. you can -- you can extend promotions. there are so many things we can do, but the key is we really want to put that minimal stress on the force