When the Union Army tried to capture the town of Manassas Junction, Virginia, which is only a short distance from Washington D. C. and was the home of an important railroad hub, this battle occurred, the first major battle of the Civil War:

Which statements describe einsatzgruppen? check all that apply. they were considered the last step in the "final solution." they were part of the german army. they carried out mass executions. they were known as mobilized killing units. they were used by germany during the invasions of poland and the soviet union.