Answer:
conflict,
drought,
famine, or extreme religious activity.
Answer:
Dred Scott
Explanation:
Dred Scott v. Sandford case of 1857 :)
Trenches were dug in a zigzag pattern so that if an enemy entered the trench, he could not fire straight down the line. ... The main trench lines were connected by communicating trenches, allowing for the movement of messages, supplies, and soldiers and were lined with barbed wire.
