Taiwanese aborigines used five to six Formosan dogs to circle a wild boar and each dog would work to wound the boar. The Dutch colonists imported a hunting dog (known as the 'Flying Dog' (Traditional Chinese: 飛狗)) to Taiwan and started to hunt the native Formosan sika deer (Cervus nippon taioanus) that inhabited Taiwan. The Dutch East India Company established a trading post whose main business was the export of sika skins to Europe. During the six decades of Dutch activity 2,000,000 to 4,000,000 sika skins were exported to Europe,contributing to the eventual extinction of the subspecies on the island. Furthermore, the Dutch prohibited native tribes from owning dogs, slaughtering large numbers of the indigenous dogs. Currently, the ROC Air Force is considering the Formosan Dog for military purposes. At this time the ROC Air Force is using German Shepherds for security, but German Shepherds have some downsides.