Central to the success of NATO is the ability of the countries to work together—the interoperability that we speak about quite often. Any opportunity that you have to exercise together is particularly useful.
In a NATO context, while we exercise frequently with them, we haven't had many opportunities to operate with Poland, for example. At the very tactical level, the skills of the various countries would provide something for our soldiers to take away. As to the opportunity to exercise with them, we have done air drops together in formation. I think a lot of useful interoperability-building has been going on.