The DEC brings 15 leading UK aid charities together in times of crisis: Action Against Hunger UK, ActionAid, Age International, British Red Cross, CAFOD, CARE International UK, Christian Aid, Concern Worldwide, International Rescue Committee UK, Islamic Relief Worldwide, Oxfam GB, Plan International UK, Save the Children UK, Tearfund and World Vision UK; all collectively raising money to reach those in need quickly. We only appeal when we know we can help. These are the three key questions we ask: 1) Does the scale and urgency of the disaster call for decisive action? 2) Are our member agencies in a position to provide effective and swift humanitarian assistance? 3) Will the public support us? Once we decide, we act.