In this speech, President Deiss of the General Assembly warns of the UN’s potential marginalization as a main actor in global governance by ad hoc organizations such as the G-20. The G-20 may be more effective than the UN in making quick decisions in tumultuous circumstances such as the financial crisis, but lacks the legitimacy only the UN can provide. According to Deiss, the UN should be strengthened as an umbrella organization for global governance through specific reforms. Its organization can then connect the G-20’s “leadership” to the “expertise” of specialized agencies such as the IMF and the World Bank and provide decision-making with its “unique legitimacy”.