"Tommy" ROEs
ok, what does that mean?
Okay, picture this:
Germans in fighting positions, fighting hard, as Germans are wont to do.
Their assailants are the Brits, AKA, "Tommies."
Germans, as stated, are fighting and continue to do so, up until to point where it is obvious the tommies are going to overrun their position.
At that point, the Germans drop weapons, step back from the parapet, and raise their arms in surrender.
Whereupon, the tommies, with bayonets mounted on SMLEs, shout, "Too late, chum," and run the Germans through the neck with their bayonets.
For more depth, google the following:
"too late, chum"
The concept of "right of storm" from ancient & medieval war is similar.
Also, John Keegan's
Face of Battle* examines this.
* You have read this, I assume? If not, you are just plain wrong. Get in the right, ASAP.