What happens when Trump comes up against people of Integrity

It seems that the Twit in chief may have overstepped. (Like that has not happened before) I suspect even Trump is not stupid enough to try to stare down REAL men of Honour, Dignity and Service.
http://www.abc.net.au/news/2018-08-17/retired-admiral-william-mcraven-speaks-out-against-donald-trump/10131364