1. I would say the Truman doctrine was a response to Chinese communism as President Truman wanted to give European countries economic assistance and resist communism.
2. The Korean War was a result of North Korea invading the south.
3.NASA was founded in response to Soviet technological gains, I believe.
I hope you find these answers useful, I myself have just started this topic
*ok I'm Australian I'm just basing what I know of this from what I've read and heard from the musical* ok so basically Hamilton was in control of the capital and to raise it he needed tariffs (tax) from certain people, therefore tariff would help him get ahead of Jefferson and Madison who had control of the banks (I think)
Answer:
D,It's was made to liberate Greek cities from Persian rule and as defence in the case of revenge Persian attacks.
Answer:
The Louisiana Purchase was completed on April ,30,1803
