America joined allies in 1817 against unknown opponents. Large trenches were dug for soldiers to hide in for protection during trench warfare between two sides, with no man's land in between containing barbed wire and mines. The trenches protected soldiers from artillery but were always wet or frozen with rats and flies, and dead bodies sometimes remained inside.

20. America joins allies in
1817.

21. Winners: The Allies

26. Trench Warfare
•Large ditches for soldiers to hide in for protection
•No man’s land: in between enemy trenches
•Barbed wire and mines in between no man’s land
•Trenches protected from artillery, but loud
explosions kept soldiers up at night
•Trenches were always wet or frozen
•Major rat and fly problem
•Dead bodies had to stay in the trenches