Advantages: the country controlling had more countries for troops, food, supplies, and areas to fight. They also had much power over the civilians and could force them to change in his ways.
Disadvantages: law enforcement was quite cruel, food ran lower, their homes became a war zone, and they might have to change their ways and beliefs
The Atlantic slave trade, transatlantic slave trade, involved the transportation by slave traders of various enslaved African people mainly to the Americas.