It is my understanding Obama has sent F-16s and tanks already to Egypt. My guess, however, is these are already in the hands of the military. He is sending 400 US ground troops to do who the h*ll knows what. The troops are from Texas, so it is likely his way of sending a big f-you to Rick Perry and the rest of Texas.
When in doubt, shoot up some Texans? Sounds very Obama-ish.