The "Algiers Declaration", which closed the work of the 31st edition of the Arab League Summit held on Wednesday in the Algerian capital, stressed the imperative of working to consolidate joint Arab action to preserve the national security of the Arab States in its comprehensive meaning and in all its political, economic, food, energy, water and environmental dimensions, and to contribute to the resolution of the crises facing some Arab countries, so as to preserve the unity of the member States, their territorial integrity and their sovereignty over their natural resources.