From The Dialog:
The apparition stories of the Virgin Mary in Asia stem from a deep devotion to her by persecuted Catholics. These apparitions have occurred in several Asian countries where Catholicism was introduced.
Since there are many, attention will be given to Our Lady of La Vang (Vietnam) and Our Lady of Donglu (China). Both apparition stories occurred after people prayed to Mary for protection from religious persecution. Interestingly, both stories are connected by how Mary is physically depicted with Asian features. The apparition of Mary at La Vang occurred in 1798 during the Tay Son rebellion. People fleeing from the province of Quang Tri hid in a nearby forest. She appeared to them as a beautiful lady holding a baby. She consoled them and promised to always help.