A Voluntary Defence Organization (VDO) is a group formed by civilians to support national security and assist in emergency situations. These organizations often consist of volunteers who undergo training to prepare for various scenarios, including natural disasters and civil unrest. Their primary goal is to enhance community safety and provide assistance to local authorities. VDOs can vary in structure and function, depending on the needs of the community and the country. They may collaborate with government agencies, such as the military or police, to ensure a coordinated response during crises. Members often engage in activities like disaster preparedness, first aid training, and public awareness campaigns.