I'm pretty sure that would be true because of his crisis theory.
Answer:
pls give out the example?
Explanation:
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Unrestricted submarine warfare, which became prominent in World War I, meant that submarines could sink any time of vessel at any time without warning. Before this, they had to surface first and place crews on lifeboats.
Answer:
disease was the number one killer of combatants.
Explanation:
please mark me brainliest
Answer:
To develop new markets and locate additional natural resources.