I must beg to differ, because I know many of the new NATO nations that I have met.... I meet with them regularly. I was recently in Latvia, for example. They have no caveats on their troops in Afghanistan. It's a small nation, but it has no caveats. Albania, which is not a NATO nation but nonetheless a partnership for peace nation, has deployed forces with no caveats on it. So they are all there to do what they can. Poland is probably one of the more prominent new NATO nations that you would have referred to. Poland has just completed a deployment of about 1,200 troops into the eastern region, which is a difficult region of Afghanistan, and they have no caveats on their troops.
So each nation makes its own call in that respect, and we continually encourage them to do just what you said to minimize those caveats.