The tribes that were affected by this treaty were the Walla Walla and the Cayuse. I would say that the answer is the Walla Walla tribe. Hope it helps :)
George Creel headed the Committee on Public Information
during the time the U.S. joined the First World War. They used every method
within their disposal to convince Americans to support the war effort. They used printing posters, radio programs
and even the movies to convince public opinion that it was necessary for
America to take part in the war.
<span>On April 2, 1917, President Woodrow Wilson asked Congress to declare war against Germany, saying, “The world must be made safe for democracy.” Four days later, Congress voted overwhelmingly in favor of a war declaration.</span>
Answer:
Henry's motive behind the annulment was his need for an heir to the throne.