"The US and Japan became allies and trading partners" was a result of the U.S. occupation of Japan after World War II.
<u>Explanation:</u>
The U.S. guided the Allies in conquering and restoration the states of Japan following Japan's defeat in Second World War. The U.S. occupying forces promulgated political reforms as government transformed to a democracy, military reforms as its empire was dissolved, social like education and economic system was reorganized and rebuilt from 1945 to 1952 under the leadership of General Douglas A. MacArthur. During the war itself, the fundamental was laid for the Allied seizure of a beated Japan.
Reason for this is because it was thought a lot of the statues were carved to replicate or be a symbol of political leaders and to have similar features to many of the past rulers.