The Lhasa Apso origins are Tibet and Bhutan and is named after the sacred city of Lhasa. In Tibet they were, and still are, kept by Buddhist monks as watch dogs as well as companion dogs and gave a warning bark if intruders entered the monastery. In the early 20th century, the Lhasa Apso first came to Britain from Tibet with the Shih Tzu and this started the confusion between the two breeds. The two breeds then arrived in the US and further confusion arose as Lhasa Apsos were being registered as Shih Tzu’s and vice versa, and then the dogs were being bred causing even more confusion as to the correct breed of the litter. In time, the size distinction and the more reserved character clearly defined the two breeds, and they were registered separately.