Why was the union determined to capture vicksburg during the civil war?

It's D to divide the confederacy, it wa part of the anaconda plan. Step 1, blockade ports to prevent outside help. Step 2, split the south in half at the mississippi river (the battle of vicksburg was to capture a major control point of the mississippi completing step 2). Step 3, march on the capital city. 

Because he proposed that all the treaties should be made through the league of nations.

Up the mula ya know: '(: '(: '(: '(: '(