After 1867, did the United States remain generally isolated or were they more formally involved in global affairs?

they were more formally involved in global affairs

Explanation:

After 1867, the United States were more formally involved in global affairs.

This is evident in the fact that, United States were involved in some expansion sit policies such as :

Purchase of Alaska from Russia in 1867

United States setting up provisional government in Hawaii in 1893

In 1898 United States invaded Cuba and declares war on Spain

In 1899, United States began trading with China

in all honesty, it really hasn't. except that hitler killed himself.

abraham lincoln  (february 12, 1809  – april 15, 1865) was an american statesman, politician, and lawyer who served as the 16th  president of the united states  from 1861 until  his assassination  in april 1865. lincoln led the nation through the  american civil war, its bloodiest war and its greatest moral, constitutional, and political crisis.[2][3]  he preserved the  union,  abolished slavery, strengthened the  federal government, and modernized  the u.s. economy.