Trenches became valuable to WW1 armies because they were a defensive ... Another common problem among the soldiers was lice. Due to poor hygiene, overcrowding and a lack of fresh clothing, many ...

Around 650,000 Canadian soldiers fought in WW1. In the east ... themselves to the food supplies and spreading lice throughout the trenches. The mud also created health problems for the troops ...

So-called "trench fever" was caused by the transmission of body lice, which infected armies across the Western and Eastern ...