DONALD RUMSFELD: Well, I think when you say "that different," it's important to understand that you can - when the Germans transformed their armed forces into the Blitzkrieg, they transformed only about 5 or 10 percent of their force. Everything else was the same, but they transformed the way they used it, the connectivity between aircraft and forces on the ground, the concentration of it in a specific portion of the line, and it - one would not want to transform 100 percent of your forces. You only need to transform a portion.