- About turn
- Absent without leave
- Action man
- All present and correct
- Attack is the best form of defence
- Beat a hasty retreat
- Bite the bullet
- Blood, sweat and tears
- Drummed out of the army
- Extraordinary rendition
- Fifth column
- Give no quarter
- Hoist with your own petard
- I have nothing to offer but blood toil tears and sweat
- Join the colours
- Kilroy was here
- Lions led by donkeys
- Loose cannon
- Loose lips sink ships
- Meet your Waterloo
- Moaning Minnie
- Nail your colours to the mast
- Old soldiers never die, they simply fade away.
- No names: no pack-drill
- Not by a long shot
- Once more unto the breach, dear friends, once more
- Over the top
- Overpaid, oversexed, and over here
- Pass muster
- Pyrric victory
- Rank and file
- Show a leg
- Steal a march
- Tell it to the marines
- The best defense is a good offence
- We few, we happy few, we band of brothers