Hitler's power was not checked when the US entered the war. The war with the US was between them and Japan. The USSR did join sides with the allies when Germany broke an treaty. However, the US did win the war between Japan.
Answer:
The immediate reasons of the War of 1812 were a series of economic sanctions taken by the British and French against the US as part of the Napoleonic Wars and American outrage at the British practice of impressment, especially after the Chesapeake incident of 1807.
Explanation:
As a general impact over all of Africa, foreign invaders, typically from Europe, initially seemed to have a positive impact in the sense that they introduced public schools and basic hygiene, but the also had many negative impacts because eventually, in the 18-1900's when many African nations became independent countries and forced the Europeans out, they were left with little government, political, or economic skills which is why many of the African nations of the modern day are still considered developing countries.