The party has a published constitution aiming for unity, solidarity, social justice and prosperity. NATINADS has been and remains one cornerstone of Alliance solidarity and cohesion. It would balance individual achievement with group solidarity and cooperation with competition. Terms such as attraction, solidarity, and morale are often used to describe group cohesion. It remained in close political solidarity with the Fourth International. A mass was held and banners hailing the Solidarity movement were laid. Platini based his speech on virtues of solidarity and universality. This system is the traditional expression of communal solidarity. He suggests secularism inevitable for the solidarity and integrity of India. Mestan formed his own party, named Democrats for Responsibility, Solidarity and Tolerance. PNGDF soldiers were approached by leaders of the NGO Melanesian Solidarity (MELSOL). This has resulted in some expressions of international solidarity with the region. Women were especially active in building neighbourhood solidarity on housing issues. This tradition of solidarity is unique to Pittsburgh. These structural differences tend to hinder effective global solidarity.