I just want to know the answer to these questions thank you and you will 5 for each question and that adds up to 15 since there are 3

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