Article. 5 of the Declaration on the Rights of Man and Citizen of 1793 states: "When the government violates the rights of the people, insurrection is, for the people and for each portion of it, the most sacred of rights and the most essential duties. " Also art. 7, paragraph 3, of the Portuguese Constitution of 1976 recognizes the right of peoples to self-determination and independence and development, and the insurrection against all forms of oppression.