Trench foot
Trench foot can be prevented by keeping the feet clean, warm, and dry. It was also discovered in World War I that a key preventive measure was regular foot inspections; soldiers would be paired and each made responsible for the feet of the other, and they would generally apply whale oil to prevent trench foot. If left to their own devices, soldiers might neglect to take off their own boots and socks to dry their feet each day, but if it were the responsibility of another, this became less likely. Later on in the war, instances of trench foot began to decrease, probably as a result of the introduction of the aforementioned measures; of wooden duckboards to cover the muddy, wet, cold ground of the trenches; and of the increased practice of troop rotation, which kept soldiers from prolonged time at the front.
Trench foot
Trench foot made a reappearance in the British Army during the Falklands War in 1982. Some people were even reported to have developed trench foot at the 1998 and 2007 Glastonbury Festivals, the 2009 and 2013 Leeds Festivals, as well as the 2012 Download Festival, as a result of the sustained cold, wet, and muddy conditions at the events.