Chinese analysts following the recently announced ongoing 'live fire' exercises have observed on a blog site that the exercises have been going on for several weeks. They say that the military exercises seem to be heavier on some days as compared to others and that they have been underway now for over two weeks.  The exercises involved all the MRs. They also observed that this time the military exercises have gone on much longer than most and are, in fact, probably more intense than any held in the last more than fifteen years.