Answer:
1. The Chinese Communist Party and Chinese Nationals worked together as the First United Front.
2. Chinese Nationalsists purged the Chinese Communist Party from their organization, known as the White Terror.
3. The Chinese Communist Party and Chinese Nationalists worked togerhter to deal with the growing threat of Japan.
4. The Chinese Communist Party and Chinese Nationalists wage a civil war against each other.
Explanation:
Afghanistan became an independent state when Amanullah established an alliance and signed a treaty of friendship with the Soviet Union. Hope this helps if you have any questions please feel free to message me;)
To preserve the union and end slavery. hope i helped and if not sorry!!