What common effect did the napoleonic wars have on the european countries of spain, austria, and russia?

The common effect that the Napoleonic Wars had on Spain, Austria and Russia was that, despite winning the war, they were no longer among the powerful nations of Europe.

Explanation:

One of the countries that suffered the most attacks from the French was Spain, which brought as a consequence the lost of its dominions over the American colonies.

In other words, the Latin American countries were gradually gaining their independence, as they had also sought inspiration in the nationalist and libertarian ideals of the French country.

With respect to Austria and Russia, the Congress of Vienna determined that these would recover their lost territories before France. But even so, the war formed a new power: Great Britain, which displaced these countries as the main European powers.

the answer is a. laws were enacted in the aftermath of the plot to make it harder to free slaves,increasing sectionalism