Question

By U.S. National Park Service, restoration/cleanup by Matt Holly [Public domain], via Wikimedia Commons

Answer 1

Answer:

Union forces overwhelmed Confederate defenses and continued their march.

Explanation:

During the "Grant's March" that occurred between 29th till 31st March of 1863 which happened from Tennessee and the Mississippi River, there were different battles that occurred, of which the Union forces were victorious as they took one of the strongholds of the Confederate forces.

Therefore, from the map, it illustrates that Union forces overwhelmed Confederate defenses and continued their march.