This is purly a hypothetical situation that has no connections to the real world.

The army your apart of is crushed in a battle. You lead a division of men that you know can dig and screen the rest of you fleeing army. This can give it time to regroup, resupply, and fight on. You have two choices, flee and hope someone else screens you, or you dig and fight knowing it will cost you your life, and the losses among you men will be 100%. What would you do?

I know at least I would dig in, mostly because I have always wanted a death such as that, protecting the greater good.