The answer is A the eastward expansion of Russia under Catherine the great. Let me know if you get it right...
Answer:
He created the Embargo Act and he also launched the US navy at the Barbary States.
Explanation:
Since the Barbary Pirates were stealing US merchant boats, he first created the Embargo Act, which prohibited trade with other countries (at least for the time being). He then launched ships into the Mediterranean, resulting in the first Barbary War, that the US won.
Answer:
The Tang Dynasty, which ruled China from 618 to 907 CE, conquered Vietnam, and made it the southernmost province of China.
Vietnam, up until that point, had been a problematic place for China, even it it was much smaller. The Tang Dynasty was able to conquer the area, and integrate into the central bureacuracy of the Empire, this is why they began to referred to Vietnam as the "pacified south".