Spiked Pits - These old fashioned death traps are technically prohibited or regulated by Protocol II of the 1979 Convention on Certain Conventional Weapons. Pits with sharpened bamboo spikes maimed thousands of soldiers in Vietnam and in the Pacific during WWII. Adding insult to injury, the Vietcong and Japanese would routinely roll those spikes in human or animal feces first, causing secondary infections after even the smallest scratch. That, in itself, is a direct violation of the 1907 Hague convention on biological weapons and might even violate the 1675 Strasbourg Agreement.
And that's where you're wrong!
A dead soldier is left there for later pick up.
A wounded soldier imediatly takes 1-2 of his buddies to carry him to safety, wham 3 soldiers less with one bullet.
Remember: There are many kinds of wounded but only one kind of dead.
#16
Toxin, think greek for bow.
They lased their arrows with poop and decaying bodies way back then, nothing new.