Britain entered World War I in 1914 to honor a treaty that promised to defend Belgium and to fulfill an alliance with France and Russia. The Germans attacked Liege, Belgium, in the first battle of World War I, and then marched on to attack France.
I'm assuming by "war" you mean World War I
Order 9066 was a World War 2 policy that had long term consequences for the Japanese Americans. The order allowed the Army to "evacuate" anyone that they thought was a threat to National Security.
It affected the Japanese Americans severely. The order forced more than 120,000 Japanese to relocate. They were relocated to 1 of the 10 internment camps around the U.S. (Internment = putting someone into some sort of prison..) They put the Japanese into these camps in fear that they were loyal to Japan.
The correct answer is letter D