Satuan Karya Pramuka (Saka) or special scout troops are the education tools, part of the Indonesian Scouting movement, to sharpen the Scouts' skills in certain fields, to build knowledge in the Information Technology (IT) field, and to answer the challenges from youth to provide advantageous activities. Satuan Karya troops are for youth age 14-25, with at least the Penggalang Terap rank, or for any person who is not a Scout, who can fulfill certain qualifications. Every troop has their own department, where each department concentrates on some special field or branch of science. In every Satuan Karya, there are special merit badges that can be obtained by fulfilling the requirements. There are nine such speciality units and these are open only to Scouts in the Rover ("Pramuka Penegak") and Venture Scout ("Pramuka Pandega") levels. Saka Wirakartika Satuan Karya Pramuka Wirakartika is a special troop where scouts enrich their knowledge and skills for national military defense and civil defense. It is affiliated with the Indonesian Army. It is under supervision of both the National Council and the Indonesian Army. There are five subgroups: Survival Pioneering Mountaineering Ground Navigation Disaster Management and Mitigation Saka Dirgantara Satuan Karya Pramuka Dirgantara or Air Scout Troop is a special troop where the scouts sharpen their skills in aeronautical field. It is affiliated with the Indonesian Air Forces as well as the other aero clubs. It is under the supervision of both the National Council and Indonesian Air Force, together with the Ministry of Transportation. There are three subgroups: Aviation Sport Aviation Knowledge Air services and aviation health and safety Saka Bahari Satuan Karya Pramuka Bahari or Sea and Maritime Scouts Troop is a special troop where the Scouts sharpen their skills in the maritime field . It is associated with the Indonesian Navy (including the Marine Corps), Ministry of Maritime Affairs and Fisheries, the Ministry of Transportation and other organizations that have connections with maritime activities. It is under the supervision of both the National Council and the Navy. These Scout troops only exist in places which have Maritime / River resources. The SKPB is organized into 4 sub groups: Maritime Resources and Marine Environmental Protection Maritime Transportation Maritime Tourism Maritime/Riverine safety and security issues Saka Bhayangkara Satuan Karya Pramuka Bhayangkara or law enforcement Scouts Troop is a special troop deal with law enforcement in the community, assure the safety of and help law enforcement