Answer :
Final answer:
Language differences influenced World War I military service through diverse communication methods, alliances, and cultural influences.
Explanation:
Language differences affected military service during World War I in various ways. For example, the postal censors who read the soldiers' letters had to know forty-seven languages. Additionally, Native American soldiers used their languages as a form of communication during the war. Language differences also played a role in the formation of alliances at the beginning of World War I, as seen with the alliances based on linguistic families.
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