the UN Convention on Combating Desertification: an international agreement to help countries where lack of rain makes the country so dry that it cannot be used for agriculture to an agreement between two or more countries or people that gives them power or influences the treaty on the European Union an agreement , which was concluded in 1991 in the Dutch city of Maastricht, where the Member States of the European Union agreed on plans for their future, including for economic union and the introduction of the single currency. It came into force in 1993. an official written agreement between two or more countries. When heads of state or government negotiate a treaty, they discuss it before reaching an agreement; and when they ratify a treaty, they give it their formal agreement, usually by signing or voting to protect its responsibilities: a 2005 agreement between all UN member states to try to protect people from genocide, war crimes, ethnic cleansing and crimes against humanity, the idea that national governments play a more important role in international relations than more permanent organizations such as the public service agreement than a country or an organization exists a bilateral agreement or bilateral activity is a country that two groups or countries is a country that has entered into an agreement with another country that they cooperate to help each other, especially in a war a formal agreement between the governments of different countries on the behavior against each other or with respect to the population of their country the United Nations Convention on International Goods Contracts a treaty introduced in 1980 to standardize international trade law. It is informally known as the Vienna Convention. to formally agree to establish close relations with another country or organisation, a series of international agreements decreed how people should be treated when trapped in war, a 1998 agreement between the British and Irish governments, which made peace proposals in Northern Ireland a peace agreement in Northern Ireland , an agreement between countries that does not test nuclear weapons is formally used when a country formally adheres to a group of countries or when an agreement between two or more countries accepts persons, groups or countries in which they agree to cooperate to achieve something that relates to the financial and monetary principles established in 1944 at a meeting of allied nations in the American city of B Woodrettons.