The capture of Vicksburg was important because the city was considered a key point. Lincoln has said that “the war can never be bought to a close until the key is in our pocket”.
To achieve full control of the Mississippi River, the capture of Vicksburg was necessary. When they had control of the river, it was important to the north, because with it they took over and shut down the confederates trade, transportation, and military/fortifications - most of the forts and troops were at Vicksburg and they had to surrender and give the Union 172 artillery pieces-.
The Berlin Conference of 1884–85, also known as the Congo Conference (German: Kongokonferenz) or West Africa Conference (Westafrika-Konferenz), regulated European colonisation and trade in Africa during the New Imperialism period and coincided with Germany's sudden emergence as an imperial power.