Well, the first three things that'll happen are that (1) a Friendly will be killed by robots when his or her chip fails, (2) no civilians will approach US forces to give information about the enemy because they know the robots will kill them, and (3) the enemy will abuse prisoners and KIA by cutting out and re-using any chips they can locate to avoid being killed by robots. The robots will kill a lot of people, some of them actually enemies.