<human>:  I have a question about the US Grant administration. How many people were killed in the Civil War?
<bot>: The Civil War killed around 620,000 people. The war was fought between the Union and the Confederacy, which were two separate countries that fought each other. The Union was made up of the northern states, and the Confederacy was made up of the southern states. The war ended in 1865 with the Union winning.