Why did president harry truman react so strongly when north korea attacked south korea? a. he saw an opportunity to increase defense spending. b. he wanted to protect military troops stationed in northeast asia. c. he was worried that the chinese government was behind the attack. d. he wanted to prevent the advance of communism.

Hello there!

Corret D. He wanted to prevent the advance of communism.

North Korea was at a Communist state and Truman had troops in South Korea at the time, and the United States was pursuing a policy of containment of communism and the Soviet Union around the world.

Hope this helps!´

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explanation:

i am pretty sure hopefully just you