They are both quoting the same historian's description of the storming of Pointe du Hoc at dawn by 225 rangers on June 6, 1944. So effectively they both are "plagiarizing" based on your description of it. So what's your problem with these speeches?
That speech has been reused by many such as military leaders of the United States and France. I'm surprised more Presidents of the United States have not used it.
wrbtrader