These ain't going anywhere in a hurry. Firstly they are still painted for temperate climates, secondly they are very light tanks, if you seen 300 M1's driving past in desert cam then that would be worrying. These were probably going to be scrapped or retired if I was to have a guess. They look 80's - 90's style light tanks armoured carriers, similar to our scimitars.
I don't think this will ever be a ground war, those things are not far off being finished now. Iraq and Libya showed how these things should and shouldn't be done.
I do agree that war looks likely now, especially with the draw down a year early in Afghan looking very suspicious. But think it will be an air war led by Israel.