Diplomacy is the main tool in the management of foreign affairs, as it is the driving force of international life when it is best used in accordance with the rules of diplomatic law, and this diplomatic art in representation of the authorities is not absolute from the international and domestic point of view, rather there are a number of obligations that these bodies must have Do not bypass it when conducting its business in the host country, in a way that guarantees the development of diplomatic relations between the approved and receiving country.Hence, the practice of the European Union missions and the Canadian and British embassies in Iraq must not be contrary to the diplomatic norms and the rules of diplomatic law that obligated these missions to observe the laws of the host country and the values and traditions so that they are in harmony with those diplomatic rules and norm, And this is the essence of the research by determining the legal status of raising the gay flag in Iraq by these missions in accordance with international and domestic rules.