they fell for your mind games they didn't fight back. iraq fell for the show and mind game. isis is what remained of the large army you talked about all major leaders of isis were army generals of iraq who were imprisoned in abu gharib.  they went on to terrorize the world for many years.  if the iraq army had stood their ground us would've suffered huge losses.  iran is a very mountainous terrain this war will drag on for years and if you push to that extent your homeland will be hit.
India