Why did China and the Soviet Union decide to support North Korea after World War II? They wanted to add Korea’s territory to their own.
They wanted to spread communism to other countries.
They wanted to gain access to more ports on the Pacific Ocean.
They wanted to strengthen their defenses against Japan and the US.

They wanted to spread communism to other countries.

Explanation: In 1950, when the Korean war started, the cold war was in full swing and both sides tried to spread their ideas around the globe so the 2 communist nations in Asia(Soviet Union and China) supported North Korea to spread communism.

interdependence is when all participating groups and individuals depend on each other. if you depend on one anothers goods, you end up trading in order to get the items you're looking for. (for ex: if i have food and you have water, we trade in order to depend on each other to live)

they wanted the u.s. to fight on the side of the central powers.