 Singapore was especially interested in Israel's model of national service, a factor in its decisive victory in the Six-Day War over its Arab neighbours in 1967.This led to the implementation of Singapore's own national service programme starting in 1967.All eighteen-year-old males would be required to participate in national service and train full-time for two and a half years, and then required to repeatedly come back each year to maintain their skills in order to carry out an effective mobilisation at any time.