It is good that my original post has provoked some good discussion, but the point I was hoping to make, so far has been missed.
I think that there is a big difference in the way the US Commanders dealt with what, by any stretch of the imagination, are fairly outspoken comments, and the way the British Government, and press, would have persecuted such comments.
People deal with the stresses of war in many different ways, as evidenced by the various posts and threads, but I do still feel that a moderate reaction to General Mattis's comments shows that there is genuine understanding of what war is like, and the effects it can have on brave and strong people.
Perhaps our UK Government and press could learn a few lessons, and not be so quick to "have a go" at our Armed Forces as they so seem to like doing.