This paper addresses the “aid for trade” initiative as a key source of economic growth and prosperity, so necessary in developing countries and especially, least developed ones. Based on a deductive analysis, the research purpose is to observe, as much as possible, the involvement of international organizations to support this foreign aid and its effects on poor nations. Assuming that developing countries need foreign aid to get out of poverty and to fully benefit from the advantages of international trade, but not only, the paper shows that from the XXI century, donor countries have considerably increased the amounts allocated for this purpose.