Which event began in 1799 when Napoleon became leader of France?
A- the region of terror
B- the Napoleonic wars
C- the Russian invasion
D- the Napoleonic attack on Spain

B

Explanation:

i'm not sure if this is correct

president thomas jefferson hoped that the embargo act of 1807 would the united states by demonstrating to britain and france their dependence on american goods, convincing them to respect american neutrality and stop impressing american seamen. instead, the act had a devastating effect on american trade.

on april 6, 1917, the u.s. joined its allies--britain, france, and russia--to fight in world war i. under the command of major general john j. pershing, more than 2 million u.s. soldiers fought on battlefields in france.