1. You are not superman. (Freshly graduated recruits from Marine boot camp and all fighter pilots, especially, take note.)
2. Teamwork is essential, it gives them someone else to shoot at.
3. Suppressive fires - won't
4. If it's stupid but works, it isn't stupid.
5. Don't look conspicuous - in a combat zone it draws fire, out of a combat zone it draws sergeants. (For this reason aircraft carriers have been called "bomb magnets.")
6. Never draw fire, it irritates everyone around you.
7. When in doubt, empty the magazine.
8. Never forget your weapons was made by the lowest bidder.
9. If your attack is going really well, it's an ambush.
10. No plan survives the first contact intact.
11. All five-second grenade fuses will burn down in three seconds.
12. Try to look unimportant, because the bad guys may be low on ammo. (Trivia devotees will recall the sudden disappearance of rank and distinctive caps on the uniforms worn by Soviet officers in Afghanistan.)
13. If you are forward of your position, the artillery will fall short.
14. The enemy diversion you are ignoring is the main attack.
15. The important things are always simple.
16. The simple things are always hard.
17. The easy way is always mined.
18. If you are short of everything except enemy, you are in combat.
19. When you have secured an area, don't forget to tell the enemy.
20. Incoming fire has the right-of-way.
21. No combat-ready unit has ever passed inspection (Note: No Marine unit has ever failed a combat readiness inspection, which suggests peacetime inspections are to readiness as mess-hall food is to cuisine.)
22. If the enemy is in range, SO ARE YOU.
23. Close only counts if your on the receiving end.
24. Beer math is 2 beers times 37 men equals 49 cases.
25. Body-count math is 3 guerrillas plus 1 probable plus 2 pigs equals 37 enemy killed in action.
26. Friendly fire - isn't.
27. Things that must be together to work usually can't be shipped together.
28. Radios will fail as soon as you need fire support desperately. (Corollary Radar tends to fail at night and in bad weather, and especially during both.)
29. Anything you do can get you shot - including doing nothing.
30. Make it too tough for the enemy to get in, and you can't get out. (This seems to be the guiding design principle behind the Soviets' BMP and our own Bradley infantry fighting vehicle, both of which nicely package the troops in armored boxes for group destruction.)
31. Tracers work BOTH ways.
32. The only thing more accurate than incoming enemy fire is incoming friendly fire.
33. If you take more than your fair share of objectives, you will have more than your fair share to take.
34. When both sides are convinced they are about to lose, they're both right.
35. Professional soldiers are predictable, but the world is full of amateurs.
36. If you can't remember you left the claymore pointed in your direction.
37. Missing the target can mean becoming a target.
38. Never share a foxhole with anyone braver than you are.
39. The most dangerous thing in combat is an officer with a map.
40. If your advance is going really well you are walking into an ambush.
41. The quartermaster has only two sizes. Too large and too small.
42. If you really need an officer in a hurry take a nap.
43. The only time suppressive fire works really well is when it is used on an abandoned position.
44. There is nothing more satisfying than having someone shoot at you and miss.
45. If your Sergeant can see you, so can the enemy.
46. A Failure will not appear until the unit has passed the final inspection.
47. After all is said and done, more is said than done.
48. Any simple battle plan will be worded in the most difficult way.
49. The remaining distance to your base remains constant as twilight approaches.
50. In any decisive situation, the amount of relevant information available is proportional to the importance of the decision.
51. Military Intelligence is a contradiction in terms.
52. A sucking chest wound is Nature's way of telling you to slow down.
53. The problem with taking the easy way out is the enemy has already mined it.
54. Fortify your front and you'll get shot in the rear.
55. If it flies, it dies.
56. Cavalry doesn't always come to the rescue.
57. Peace is our profession -- mass murder's just a hobby.
58. There is always a way.
59. It's not the one with your name on it -- it's the round addressed "to whom it may concern" ya gotta think about.
60. If you can keep your head about you while those around you are losing theirs, you may have misjudged the situation.
61. Whenever you lose contact with the enemy. Look behind you.
62. If there aren't too many enemy shooting at you then you don't see the flanking force yet.
63. The enemy has their own grenades to throw back at you.
64. Murphy was a Grunt.
Did I miss one? E-mail me! 
