Nearly 5,000 unknown soldiers are buried at Arlington National Cemetery. Burial in Arlington is generally limited to active, retired and former members of the armed forces, Medal of Honor recipients, high-ranking federal government officials and their dependents. Funerals are normally conducted six days a week, Monday through Saturday. Arlington averages 27 to 30 funerals, including interments and inurnments, each weekday, and six to eight services on Saturdays. The flags in Arlington National Cemetery are flown at half-staff from a half hour before the first funeral until a half hour after the last funeral each day. Arlington National Cemetery is the final resting place of over 420,000 service members and their family members. All of the service members that lay to rest at Arlington sacrificed a great deal for this country and its values, but some made the ultimate sacrifice. Throughout the cemetery, you will find large government issued headstones called group burial markers. They are for services members who made the ultimate sacrifice together in the same tragedy or attack such as a helicopter crash or an explosion. The remains of the service members are co-mingled. Most of the group burial markers at ANC are government issued headstones. They list the names of each service member who died. Group burials are not to be confused with unknown graves. The individuals are known, but due to the way they perished their remains, they are not able to be separated so the Department of Defense orders that their remains be interred together. There are 100s of group burial markers at the cemetery.