May 18, 1863
Grant closes on the landward defenses
After Champion Hill and Big Black River Bridge, Pemberton’s army occupies Vicksburg’s fortified perimeter. Sherman approaches the northern roads, McPherson the center, and McClernand the southern sector while Porter controls the river side.
WHAT TO NOTICEThe campaign of maneuver has produced a contained fortress, but arrival at its works does not make them easy to take.