In the 1970s, the organization was active in drawing attention to the human rights violations by military governments in South America and building up international solidarity campaigns, especially against Pinochet in Chile and Somoza in Nicaragua.
Pada 1970-an organisasi ini aktif memberikan perhatian pada pelanggaran hak asasi manusia oleh pemerintahan militer di Amerika Selatan dan membangun kampanye solidaritas internasional, terutama melawan Pinochet di Chili dan Somoza di Nikaragua.