Why was an attack against vicksburg by river just not possible for union forces?

The eighteenth amendment specifically granted and governments the power to enforce prohibition

If you discover that an aggressive driver is following you,you should not? a.drive home or to work b.drive to a crowded location c.flash your lights and honk your horn

What originally inspired countries to band together in intergovernmental organizations (igos) ? (apex) a. climate change b. a period of peace c.population decline d. global conflicts