Which statement best describes the significance of the Union victory at Vicksburg to the outcome of the war? The victory gave the Union complete control of the Mississippi River.
The victory gave the Union complete control of the Mississippi River.

The victory persuaded the French to join the Union cause.
The victory persuaded the French to join the Union cause.

The victory provided the Union with complete control of the Great Lakes.
The victory provided the Union with complete control of the Great Lakes.

The victory saw the death of Confederate General Robert E. Lee.
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The answer is that the victory gave the Union complete control of the Mississippi River.  

Explanation:

Vicksburg’s strategic location on the Mississippi River made it a critical win for both the Union and the Confederacy. The Confederate surrender there ensured Union control of the Mississippi River and cleaved the South in two.

The Siege of Vicksburg (May 18, 1863-July 4, 1863) was a decisive Union victory during the American Civil War (1861-65) that divided the confederacy and cemented the reputation of Union General Ulysses S. Grant (1822-85). Union forces waged a campaign to take the Confederate stronghold of Vicksburg, Mississippi, which lay on the east bank of the Mississippi River, halfway between Memphis to the north and New Orleans to the south. The 47-day siege gave control of the Mississippi River to the Union, a critical supply line, and was part of the Union’s Anaconda Plan to cut off outside trade to the Confederacy.  

The Mississippi River was the primary conduit for supplies and communication through the south as well as a vital lifeline for goods going north. To Confederate President Jefferson Davis, Vicksburg was the "nailhead that holds the South's two halves together."

it would be  

germany had to pay all damages related to the war.

and i think

germany had to take sole responsibility for the war.