During the siege of Petersburg General Grant?

hard to say, but the union did outnumber the Confederate forces.

Explanation:

In the first assault by Union General, Ben Butler, the home guards had to withdraw after sustaining heavy losses. Union forces numbered up to 125,000 men while the Confederate forces had 60,000 fighters. This is also the largest concentration of African American soldiers during the civil war.

i think it is the byzantine empire

d) in the state of iowa