the.com/soldier
a person trained to follow orders nobody sane would give themselves
means A person who serves in an army, trained to fight and to obey commands.
from From Old French 'soudier' or 'soldier,' a man who fights for pay — built on 'solde,' a soldier's wage, which traces back to Latin 'solidus,' a Roman gold coin. So at its root a soldier is simply someone paid: the coin came first, the courage came with the contract. The same 'solidus' gives us the modern Italian 'soldo' and 'soldi' (money), keeping the old truth alive — armies have always run on pay.
oldest armySparta drafted boys at seven, kept them till sixty
foot tolltrench foot disabled more WWI troops than bullets
word rootcomes from solidus, the coin Romans used to pay them
sleep debtcombat troops average four broken hours a night
march mythsoldiers break step on bridges to avoid resonant collapse