Defined as "the systematic complete destruction of all 'assets' of production, including factories, arable land, mines, fisheries, and all sentient beings and droids", Base Delta Zero denoted the most severe of several levels of destruction that could be directed against a center of resistance, and involved laying waste to an entire planet by orbital bombardment, reducing the upper crust of a planet to molten slag or in some cases, atomizing the planet's top-soil.