Srry i'm soo late but the answer is A. President McKinley's desire for war.
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Answer:
No, it wouldn't necessarily be considered a war crime, especially because the US and Japan were both in turmoil with each other at the time.
Explanation:
The Mayans met their demise when the Spanish conquered the Mayan with the combination of superior technology and the introduction of foreign diseases. Foreign diseases such as smallpox weakened populations and were thus easier to subdue.