Question

1. what region did genghis khan conquer after uniting the mongols under one rule?

northern china
northern korea
japan
russia
none of the above

Explanation:

After uniting the Mongol tribes in 1206, Genghis Khan launched his first major foreign conquest against the Jin Dynasty, which controlled Northern China, starting in 1211. Campaigns against Northern Korea, Russia, and Japan occurred later (or never, in the case of Japan, as Mongol invasions of Japan were under later leaders and failed to conquer it).

Answer:

Northern China