How would you characterize the relationship among the countries of Northern Europe from the 1800s through the end of the 1900s?

It developed as a reaction to the impact of european colonialism in africa on peoples of african descent. in the  mid-20th century, activists in africa adopted pan-africanism as a rallying cry for independence from colonial rule. some african pan-africanists sought to unite the continent as one independenthope it was useful

Where’s the map ? ? post it