Are you sure that the war in replaced your slavery has an impact on infrastructure and the economy improves, I think you are wrong and that if it happens worse, there can see history Slavery in medieval Europe, We are no longer in the era of slavery, we are in the technology era.

Many reasons are caused by war and destruction of the economic and economy, it is all for the sake of the business of destruction will bring a variety of assistance to the country and will bring massive investment, both from side The sale of war tools and so on, is all for their business smoothly and their economy adds, slaves do not benefit certain countries, destruction and weapons can achieve economic turnover for Supporters, no matter how many fatalities are spent, in essence their economy is prosperous, that is what happens in the current warfare, the goal of the economy, not workers like slaves.