In May 2005 the ISAF Stage 2 expansion took place, doubling the size of the territory ISAF was responsible for. The new area was the former US Regional Command West consisting of Badghis, Farah, Ghor, and Herat Provinces. On 9 October 2008 the Italian Brigadier General Paolo Serra took over command from his compatriot Brigade-General Francesco Arena. There are currently four Provincial Reconstruction Teams (PRTs) under RC West: