After World War II ended in 1945, the world seemed smaller, more connected. World leaders decided that a lasting peace could only be achieved through an international economic order. Unrestricted global trade, leading to economic prosperity for all, would be the best way to bring nations together. Since then, global trade has become more and more complicated. Geographical regions, particular product and manufacturing sectors, and countries at different levels of economic development search for advantages in the competition for market share. To advance their needs, organizations have been created to provide training and technical assistance, bargaining power in global negotiations, and legal enforcement of multinational trade agreements. These organizations have shaped the evolution of global economics and will continue to have a significant influence over global trade in the future.