The history of temple buildings in the Great Oasis shows periods of intense activity alternating with periods of relative quiet. When seen in combination with the varying amounts of archaeological remains over time, this data allows us to chart the development of contacts between the oases and the Nile Valley. In particular, this has consequences for the times of the Libyan conflicts of the 19th Dynasty. This chapter argues that the oases were in Libyan hands during this time, after which the Egyptian army re-established control. Two dated finds from the temple at Amheida, Dakhla, are of particular interest for this discussion. A stela of Seti II marks building works at Amheida shortly after the wars of Merenptah, and a fragment of relief dated to Ramesses IX sheds light on the incursions of Libyans into the Nile Valley at that time.