What events led up to/caused the battle of vicksburg?

Confederate forces led by General John C.Pemberton tried to stop Grant's advance at the Battle of Port Gibson and the Battle of Raymond in early May 1863... By the third week of May 1863, the Union troops had driven the Confederates into the Vicksburg. A siege began, which lasted from May 22 1863, to July 4 1863..

either b) they were often feared and despised by other native cultures. or

c) their obsession allowed them to coexist with many other native cultures because of their peaceful nature.

where is the diagram