All of the following were major elements of the Union strategy for victory in the Civil War EXCEPT a gaining full control of the Mississippi River. b preventing European powers from entering the conflict. c impressing ex-slaves into the Union army. d destroying the Confederate Army of Northern Virginia.

The answer is option C "impressing ex-slaves into the Union army"

Explanation:

The truth of the Union's drawn out military preferences was likewise huge in making the Union triumph. In spite of the fact that the Confederates accepted that their rural (particularly cotton) creation was vital to wartime achievement and eventually political acknowledgment from the rest of the world, the Union's modern strength and a lot bigger populace end up being similarly as, if not more, focal. Student of history Shelby Foote has even thought about the Union war exertion, given its more prominent store of assets, to a battle wherein an adversary has one hand tied behind its back: Had the South been more triumphant on the front line, the North actually would have had assets to attract upon to crush the disobedience, while the South battled with all it had to bringing to the table and still couldn't correct a conclusive triumph against its rival.

the  wilmot proviso  was designed to eliminate  slavery  within the  landacquired as a result of the mexican war (1846-48). fearing the addition of a pro-slave territory, pennsylvania congressman david  wilmot proposedhis amendment to the bill.