freely pursue trade union activity for the protection of his interests. 2. No restrictions shall be placed on the exercise of these rights and freedoms except such as are prescribed by the laws in force and that are necessary for the maintenance of national security, public safety or order or for the protection of public health or morals or the rights and freedoms of others. 3.  Every State party to the present Charter guarantees the right to strike within the limits laid down by the laws in force. Article 36 The States parties shall ensure the right of every citizen to social security, including social insurance. Article 37 The right to development is a fundamental human right and all States are required to establish the development policies and to take the measures needed to guarantee this right. They have a duty to give effect to the values of solidarity and cooperation among them and at the international level with a view to eradicating poverty and achieving economic, social, cultural and political development. By virtue of this right, every citizen has the right to participate in the realization of development and to enjoy the benefits and fruits thereof. 21