Parliamentary Diplomacy is an important perspective and alternative form of diplomacy, even if not widely studied yet, developed lately by the increasing role of Parliaments and their enrollment in foreign affairs and international relations issues. In general, these issues have been considered as an exclusive competence of Foreign Ministries and respective Ministers, including the main role of Prime Minister as the key political actor of the government or executive branch. At the same time, ambassadors or other forms of diplomacy as for example cultural diplomacy are considered the main instruments to develop and promote international relations between countries. Nevertheless these facts, Parliaments represent complex and diversified issues relating to the role they play in foreign issues. These competencies give the Parliaments an important power in the process of diplomacy or foreign affairs. Parliamentary diplomacy is the means by which two or more parliaments conduct an ongoing dialogue with regard to key international issues.