Israel's reoccupation of the entire West Bank in Spring 2002 (Operation Defensive Shield) ended many of the limited powers exercised by the Palestinian Authority. Subsequent measures championed by Israel have deconstructed nominally Palestinian territories into an ever-more complex, almost indecipherable maze of administrative, territorial, legal, and security spaces, lacking territorial coherence and administrative transparency.
These physical divisions throughout the West Bank are caused by settlements, their infrastructure, and transportation links. Palestinians and the international community have not effectively challenged Israeli demands to assure the security of settlements and their inhabitants, expansively defined by Israel - even though these demands make the effective exercise and expansion of Palestinian authority across the rump of isolated, disjointed territories which Israel desires neither for settlement or security all but impossible.
The points at which these myriad spaces meet - checkpoints, crossing points, and the separation barrier winding its way through the West Bank and East Jerusalem - highlight the conflicts, inefficiencies, and suffering produced by Israeli policy. These hardships are not the unintended by-product of policies carelessly planned or implemented. Rather, they are the inevitable consequence of an arbitrary and lawless regime of occupation.
Prime Minister Ariel Sharon intended to solidify the physical separation of Palestinians from settler communities within the West Bank and also between the Palestinian areas of the West Bank and Israel in security, territorial, and economic dimensions. The creation of the physical infrastructure to support this policy is well advanced. Should he choose, Sharon's successor will not easily be able to reverse it.
The physical separation of settlers from their Palestinian environment relies on the creation of settlement blocs linked territorially to Israel. This continuity is contrasted by a patchwork of Palestinian areas whose territorial and administrative coherence has been sacrificed to Israeli settlement requirements, and whose linkages to other Palestinian areas, when available, are often limited to narrow corridors of "transportation contiguity."
http://www.haaretz.com/hasen/spages/672644.html