Which happened as a result of the first battle of bull run? a. southern generals realized they did not have the skills they needed. b. both armies realized the war would be prolonged and costly. c. the union army swept through virginia and captured richmond. d. president abraham lincoln used the victory to issue the emancipation proclamation. answer correctly you: ) i will mark brainliest: )

B. Both armies realized the war would be prolonged and costly.

Explanation:

The First Battle of Bull Run cost some 3,000 Union casualties, compared with 1,750 for the Confederates. For the Confederates, accusations flew between Generals  Johnston, Beauregard and President Jefferson Davis over who was to blame for the failure. For the Union, Lincoln removed McDowell from command and replaced him with George B. McClellan, who would retrain and reorganize Union troops defending Washington into a disciplined fighting force, thereafter known as the Army of the Potomac.

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