Just in case you're not alone:

The first major government in world history to outright ban slavery was the British Empire who bought all their slaves' freedoms. The Royal Navy spent most of its resources in 1800s hunting down slave ships, freeing their "cargo" and executing the slave traders. The debts incurred to pay for all this were so huge they were still being paid off into the 1990s. The biggest promoter and profiter of the slave trade at the time was the royalty of Lagos who were the ones responsible for kidnapping their people and selling them as property. The UK successfully convinced other European powers to join it in ending the millennia-old slave industry.

There a lot of my country's history I'm not proud of - including taking advantage of slavery - but I'll be fucking damned if anyone is going to tell me that my country's biggest role in the slave trade was anything other than ending it.

Let's say you're a member of village A, close to village B who you are competing with for resources. Tensions rise, conflict occurs and your village happens to win. Women, children, and a couple of men from village B are at your mercy. Will you:

1. cull them and take their remaining resources
2. take in these people who resent you and spend the little resources you have to feed and shelter them
3. sell them to your nearest slave trader AND take their remaining resources.

Remember, the outcome of this choice affects the lives of your friends and family you have known for your entire life.