In the present context of globalisation of the economy and of exchanges, the international positioning of a city is a veritable challenge.
International, bilateral or multilateral action have different objectives. On the one hand they serve to facilitate the exchanges and projects which enrich the daily management of Valladolid and on the other hand they contribute to the debate in favour of the process of European construction. “To know and understand each other better” is the idea gave origin to the movement of twinning cities, a European idea which resulted from the Second World War. Since 1971, the United Nations has agreed to foment the twinning of cities which has been conceived of as a mechanism of cooperation of incalculable value, because not only are local leaders in contact but also entire communities.