a key precept of zionist doctrine is that there is no *border* with the gaza strip. a border means you relinquish authority over the other side. the fence is a frontier -- a line with no permanence, one that only the colonizer can traverse.

this is why almost immediately after the disengagement in 2005, the army was back inside the gaza strip a few days later and it was a non-event. it wasn't a 're-invasion' or a 'return' because they never really left, just moved their barracks a few kilometers away