The Catholic Churches would often send missionaries, which would go across boundaries and geographical areas to spread Christianity and sometimes even of proselytizing others.(Proselytism is the act of converting to Christianity.)
Answer:
Because countries who practiced Christianity were traveling the world colonizing different areas and passing on their religion. Remember the 3 G's: God, Gold, and Glory.
The United States feared that if communism was successful on Vietnam, the rest of the countries that border it would soon turn into communism and those other countries that border that new communist country would also be converted to communism and so on. This is called the "domino theory" and made the United States to send troops to prevent the theory from happening.
Answer:
I think the answer is "Congress declared war against Japan; Germany then declared war on the United States."
<em>I am not sure because its been forever since I have done assignments on this, but hopefully it helps!!! :)</em>