Battle/city where victory came after weeks of bombardment and starvation in the civil war

Siege of Vicksburg is where victory came after weeks of bombardment and starvation in the civil war. The Siege of Vicksburg (May 18 – July 4, 1863) was the final major military action in the Vicksburg Campaign of the American Civil War. 

the correct answer is

d) rocket launcher

this is a good question! i'll do some research and come back when i have the answer!