Manus Nigrum, the Black Hand, takes its war against the Camarilla very seriously. It was the Black Hand that aided La Majestad in securing northern mexico in Sabbat hands; once so secured, the Black Hand moved on to other business.
Still, there are many members of Manus Nigrum in the region spread between the packs of Sabbat. They are a hidden militia waiting for the call to Crusade. However, neither La Majestad nor the Bishops of Tijuana know who the Black Hand would support, should either group decide to make a move on the Camarilla's holdings in the South West; this uncertainty has prevented either group from calling up the Black Hand.