Which of the following events first tested the U.S. policy of containment in Asia?(1 point)

the Soviet boycott of the UN Security Council

North Korea crossed the 38th parallel to unify the North and South under Communist rule

the extension of military aid over the 38th parallel to Communist French Indochina

the success of Mao Zedong in unifying China at the 38th Parallel

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Answered by GPT-5 mini AI
The success of Mao Zedong in unifying China (the Communist victory in China in 1949) — this was the first major test of U.S. containment in Asia.