Union troops lost the battle of fredricksburg because:

a. the confederates cornerd them at the rapprochannock river

b. they were ordered to cross the the open field

c. they were greatly outnumbered by the confederates

A. The confederates corned them at the Rapprochannock river

Explanation:

Battle of Fredricksburg was fought on December 11 - 15, 1862, in and around Fredricksburg, Virginia, as part of the American Civil War. Union troops (Army of Potomac) was led by Ambrose E. Burnside against the Confederate States (Army of Northern Virginia) under Robert E. Lee and Thomas J. Jackson.

Burnside (Union troops) planned to make a surprise attack on the Confederates by crossing the Rappahannock river but was defeated heavily by the Lee and Jackson (Confederate troops)

The result of the war is that it led to the futile frontal attacks of the Union Army and the victory of the Confederate defenders.

The causes for the failure of the Union troops were:

1. Bureaucratic delays prevented Burnside from receiving the necessary Pontoon bridges.

2. Communication between the officers and staffs of the Union Army were confusing and vague.

3. The defenders could plan effectively for a counter - attack, moreover, their were good understanding and planning between the officials.

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