Waiting for the flares to go up to fire the Final Protective Fire.
Arty to seal off the back to disallow the enemy’s retreat, mortars to box port and starboard, and all the grunts in the holes to the enemy’s front swing their weapons to the limit stake and open up.
Just mind that those grunts stay on the Good Guy side of the smokes.
Airdales gotta get some, too. (Not to mention the Shore Bombardment guys and the.....)
Sheesh. We're going to have go to Take A Number for this.