Why did China and the Soviet Union decide to support North Korea after World War ||? They wanted to add Korea's territory to their own.

They wanted to spread communism to other countries.

O They wanted to gain access to more ports on the Pacific Ocean.

O They wanted to strengthen their defenses against Japan and the US.

The answer is "They wanted to strengthen their defenses against Japan and the US"

Explanation:

The Korean War was the main time during the Virus War that two aggressive alliances, driven separately by the US and the Soviet Association, were engaged with immediate, outfitted clash against one another. In spite of the fact that the chronicled writing on the Korean War has been advanced significantly lately, the Socialist alliance fighting in Korea has not gotten the consideration it merits. Surely the war-pursuing capacities of the Individuals' Republic of China (PRC) were restricted, and its war endeavors in Korea relied upon Soviet hardware, Soviet guidance, and especially Soviet air uphold. Ongoing disclosures of Chinese and previous Soviet documented records exhibit a profound contribution of the Soviet Association on the Socialist side in the Korean War, particularly the Soviet Flying corps units and other military faculty that were effectively partaking in the battle against the US and its partners. However, Soviet Head Joseph Stalin's dread of a face to face encounter with the US restricted Soviet inclusion and help with Korea.

A couple of days after the Chinese Public's Volunteers (CPV) crossed the Yalu Waterway, the Beijing initiative started to draw up a forward-looking air war plan for Korea, which the UN leader had nearly dreaded they would do at that point. For very nearly three years of battle, notwithstanding the get together of a huge power of air capacity toward the north of the Yalu, the Socialists just could give restricted air safeguard to their ground activities in Korea.

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explanation: