<span>D.) millions of Indians were killed due to illnesses and diseases of the Spanish
</span>
Answer:the first was a German I-boat sinking a American British cruise liner killing many Americans. Next Germany started sinking American merchant ships and looting them. Third Germany set a blockade making it harder for the us to trade with other countrys. Fourth we had strong ties with the British and many allies and had American business that we wanted to protect in allie land. Faith many German Americans and Americans began to hear what Germany did to Belgium a neutral country.
Explanation:
