Ever wondered how World War I soldiers stayed clean (or if they could at all) amid the mud, lice, and rats of the trenches?

Explore the forgotten history of the 500,000 cats that served in the WWI trenches—from hunting rats to alerting soldiers of gas attacks.

For three years during World War I, millions of soldiers holed up in a warren of trenches, fighting and dying in nightmarish conditions along a barely moving frontline. For the French, British, ...