<P> Vicksburg was the last major Confederate stronghold on the Mississippi River ; therefore , capturing it completed the second part of the Northern strategy , the Anaconda Plan . When two major assaults ( May 19 and 22 , 1863 ) against the Confederate fortifications were repulsed with heavy casualties , Grant decided to besiege the city beginning on May 25 . After holding out for more than forty days , with their reinforcement and supplies nearly gone , the garrison finally surrendered on July 4 . </P>
<P> Vicksburg was the last major Confederate stronghold on the Mississippi River ; therefore , capturing it completed the second part of the Northern strategy , the Anaconda Plan . When two major assaults ( May 19 and 22 , 1863 ) against the Confederate fortifications were repulsed with heavy casualties , Grant decided to besiege the city beginning on May 25 . After holding out for more than forty days , with their reinforcement and supplies nearly gone , the garrison finally surrendered on July 4 . </P>
after a six week siege what city surrendered to grant 's army
after a six week siege what city surrendered to grant 's army
Vicksburg
Vicksburg