33. Measures that have been adopted by some political parties include setting aside for women a certain minimum number or percentage of positions on their executive bodies, ensuring that there is a balance between the number of male and female candidates nominated for election, and ensuring that women are not consistently assigned to less favourable constituencies or to the least advantageous positions on a party list. States parties should ensure that such temporary special measures are specifically permitted under anti-discrimination legislation or other constitutional guarantees of equality. 34. Other organizations such as trade unions and political parties have an obligation to demonstrate their commitment to the principle of gender equality in their constitutions, in the application of those rules and in the composition of their memberships with gender-balanced representation on their executive boards so that these bodies may benefit from the full and equal participation of all sectors of society and from contributions made by both sexes. These organizations also provide a valuable training ground for women in political skills, participation and leadership, as do non-governmental organizations (NGOs). Article 8 (international level) States parties shall take all appropriate measures to ensure to women, on equal terms with men and without any discrimination, the opportunity to represent their Governments at the international level and to participate in the work of international organizations. Comments 35. Under article 8, Governments are obliged to ensure the presence of women at all levels and in all areas of international affairs. This requires that they be included in economic and military matters, in both multilateral and bilateral diplomacy, and in official delegations to international and regional conferences. 36. From an examination of the reports of States parties, it is evident that women are grossly underrepresented in the diplomatic and foreign services of most Governments, and particularly at the highest ranks. Women tend to be assigned to embassies of lesser importance to the country’s foreign relations and in some cases women are discriminated against in terms of their appointments by restrictions pertaining to their marital status. In other instances spousal and family benefits accorded to male diplomats are not available to women in parallel positions. Opportunities for women to engage in international work are often denied because of assumptions about their domestic responsibilities, including that the care of family dependants will prevent them accepting appointment. 37. Many Permanent Missions to the United Nations and to other international organizations have no women among their diplomats and very few at senior levels. The situation is similar at expert meetings and conferences that establish international and global goals, agendas and priorities. Organizations of the United Nations system and various economic, political and military structures at the regional level have become important international public employers, but here, too, women have remained a minority concentrated in lower-level positions. 38. There are few opportunities for women and men, on equal terms, to represent Governments at the international level and to participate in the work of international organizations. This is frequently the result of an absence of objective criteria and processes for appointment and promotion to relevant positions and official delegations.