Simple, yet eloquent statements:

“AIM TOWARDS THE ENEMY.”
-Instruction printed on US Rocket Launcher

“WHEN THE PIN IS PULLED, MR. GRENADE IS NOT OUR FRIEND.”
-US Marine Corps

“CLUSTER BOMBING FROM B-52s IS VERY, VERY ACCURATE. THE BOMBS ARE GUARANTEED TO ALWAYS HIT THE GROUND.”
-U.S.A.F. Ammo Troop

“IF THE ENEMY IS IN RANGE, SO ARE YOU.”
-Infantry Journal

“A SLIPPING GEAR COULD LET YOUR M203 GRENADE LAUNCHER FIRE WHEN YOU LEAST EXPECT IT. THAT WOULD MAKE YOU QUITE UNPOPULAR IN WHAT’S LEFT OF YOUR UNIT.”
-Army’s magazine of prevention maintenance

“IT IS GENERALLY INADVISABLE TO EJECT DIRECTLY OVER THE AREA YOU JUST BOMBED.”
-US Air Force manual

“TRY TO LOOK UNIMPORTANT; THE ENEMY MAY BE LOW ON AMMO.”
-Infantry  Journal

“TRACERS WORK BOTH WAYS.”
-U.S. Army Ordnance

“FIVE-SECOND FUSES ONLY LAST THREE SECONDS.”
-Infantry  Journal

“BRAVERY IS BEING THE ONLY ONE WHO KNOWS YOU’RE AFRAID.”
-David Hackworth

“IF YOUR ATTACK IS GOING TOO WELL, YOU’RE WALKING INTO AN AMBUSH.”
-Infantry Journal

“NO COMBAT-READY UNIT HAS EVER PASSED INSPECTION.”
-Joe Gay

“ANY SHIP CAN BE A MINESWEEPER… ONCE.”
-Anon

“NEVER TELL THE PLATOON SERGEANT YOU HAVE NOTHING TO DO.”
-Unknown Marine Recruit

“DON’T DRAW FIRE; IT IRRITATES THE PEOPLE AROUND YOU.”
-Infantry Journal

“IF YOU SEE A BOMB  TECHNICIAN RUNNING, TRY TO KEEP UP WITH HIM.”
-U.S.A.F. Ammo  Troop

See also http://www.hitechcj.com/afrl/id69.html