As the U.S. declines as a world superpower, to make way for China, we can still all derive some comfort from its homely wisdom. 

"Aim towards the Enemy." - Instruction printed on U.S. Army Rocket Launcher

"When the pin is pulled, Mr. Grenade is not our friend." - U.S.M.C. Training Bulletin

"Cluster bombing from B-52s is very, very accurate. The bombs are guaranteed to always hit the ground." - U.S.A.F. Literature.

"If the enemy is in range, so are you." - Infantryman's Journal

"A slipping trigger 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 Preventive Maintenance

"It is generally inadvisable to eject directly over the area you just bombed." - U.S. Air Force Manual

"Try to look unimportant; they may be low on ammo." - Infantryman's Journal

"Tracers work both ways." - U.S. Army Ordnance Manual

"Five-second fuses only last three seconds." - Infantryman's 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." - Infantryman's Journal

"No combat-ready unit has ever passed inspection."

"Any ship can be a minesweeper… once." - Anon Naval brass

"Never tell the Platoon Sergeant you have nothing to do." - Unknown Marine Recruit

"Don't draw fire; it irritates the people around you." - Your Buddies

"If you see a bomb technician running, try to keep up with him."