It started with the Chinese Exclusion Act of 1882, but 10 years later it then came to the US opening Ellis Island in which immigrates had spent time before being able to actually enter the US.
If you are referring to the United States, the answer is probably the Vietnam War.
<span>The president tripled the U.S. defense budget, dispatched four divisions to Europe, and authorized the rearming of Germany
Led a United Nation action against the North, known as the Korean War.</span>
Answer: A subordinate group whose members have significantly less control or power over their lives than members of a dominant or majority group.
Explanation: