Answer:
Sustainable development has been defined in many ways, but the most frequently quoted definition is from Our Common Future, also known as the Brundtland Report: "Sustainable development is development that meets the needs of the present without compromising the ability of future generations to meet their own needs."
It was important so they can trade with others and get the stuff they need like cotton, gold, clothing and a lot more :)
It has to be a prosperous free market to enhance peace.
