The south's nearly 400,000 were viewed by the british as a resource to be exploited during the war.

The answer is 400,000 slaves wee viewed by the British.
The African Americans got themselves in the war and simply like what might happen numerous years after the fact, the North and the South were partitioned. The African Americans of the northern states joined with the American powers to help the partition from the lead of Great Britain. With the southern states, the slaves, almost 400,000 of them, were seen as abused assets by the British and as a danger to the Americans.