Infantry.
This is the layman's term for "infantry." They are soldiers who fight while on foot, as opposed to on horseback (cavalry).
The Roman foot soldier was called a miles gregarius. This was the common soldier, comparable to the preset day rank of private.
infantry.
It was caused by constant immersion, unsanitary conditions and the inability to regulary change your footware.
They stayed out of water But they also were told to change their socks regularly , wear waterproof footwear or gumboots and cover their feet with whale oil .