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Nahdlatul Ulama, the largest Islamic organization in Indonesia, was led by Abdurrahman Wahid before he assumed the presidency. Founded in 1926, Nahdlatul Ulama represents the traditionalist stream of Islam and advocates for social justice, religious pluralism, and democratic values. During Wahid's leadership, the organization played a crucial role in promoting interfaith dialogue and fostering a more tolerant and inclusive society in Indonesia.