Action would have led to a war with the Western Allies.
He explored human emotions and expressions.
Judaism and Christianity are probably the answer, however, Islamism is also monotheistic. (Judaism and Christianity are very popular.) Monotheistic means to only believe in one god.
The government built roads and railroads for the settlers. Many Indians lived on the Great Plains. The government tried to get them to sell their land. The government wanted the Indians to move to reservations The settlers killed many buffalo Lawmakers wanted the Indians to assimilate.
They tried to force the Indians to give up their culture and
traditions. Indians were not allowed to have religious ceremonies.