Answer:
The United States asserted itself as an independent nation was through the adoption of the Monroe Doctrine. This doctrine came after its independence from the British and was a warning to other European countries to stop their interference in the country.
This was a major statement of the United States to the rest of the world in it being strong enough to make decisions which are in the best interest of the country.
Prime Minister. The Prime Minister is an MP and head of the government. The leader of the party that wins the most seats in a general election is appointed Prime Minister by the Queen. The current Prime Minister is Rt Hon Theresa May MP, leader of the Conservative Party.
Th American Indian group that appeared to win a legal victory against removal in Worcester V. Georgia is Cherokee Indians.