Gaza was demolished in three weeks. Rebuilding it will take years

The difficulties are all the greater because of the destruction of much of the tunnel system linking Gaza to Egypt. Israeli and European leaders talk of the tunnel system – by one estimate there are 1,100 of them – as if it was exclusively devoted to supplying weapons and ammunition to Hamas. In reality, "the tunnel economy" has been the way in which food, fuel and everything else has reached Gaza since Israel and Egypt sealed off the Strip 18 months ago, when Hamas drove out the rival Palestinian faction Fatah in 2007. Military supplies were always a very small part of Gaza's imports through the tunnels.

"Everything from Viagra to diesel entered Gaza through the tunnels," said one source. At one point before the Israeli attack, the price of petrol went down in Gaza because a pipeline had been threaded through one of the tunnels, all of which are privately dug and owned. Cooking-gas bottles are in short supply because they previously came in through tunnels that are now closed.

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