Saphroneth
Colonel
- Joined
- Feb 18, 2017
The point is rather that if you attack it should be with a good reason to it, and with a chance of success commensurate with what is gained. Eisenhower's attack on D-Day was a gamble, but it was one which was based on both the benefits of what could be gained and an evaluation of the risk of failure - and, of course, on the fact that the planning had been going on for over a year.That's "one principle of military science". As I'm certain you know, there are many others, and some subordinate the one you've isolated. Eisenhower was presumably aware of that one on June 5, 1944, to the extent that he drafted an alternative "press release" in the event the landings failed. As we know, he still went forward.
To attack on the afternoon of the 16th at Antietam, for example, would mean (inherently) not attacking on the 17th, not with the same troops (as per Spotsylvania, a day's recovery is needed after a failed assault). In addition, after the series of failed attacks at Second Bull Run, the morale of the army as a whole is somewhat in doubt - a repulse on the 16th (or on the afternoon of the 15th, as part of a pursuit being stopped by Lee's forces over the Middle Bridge) would further harm the morale that the successes of the 14th have only begun to redress.
It's not the only principle, certainly - I don't think I've argued otherwise - but it's one of the reasons why attacking to see if the enemy might have made a mistake (when, if they have not made a mistake, you'll be repulsed) is often not a good plan.