One tunnel in Gaza was wide enough for a top Hamas official to drive a car inside. Another stretched nearly three football fields long and was hidden beneath a hospital. Under the house of a senior Hamas commander, the Israeli military found a spiral staircase leading to a tunnel approximately seven stories deep.
These details and new information about the tunnels, some made public by the Israeli military and documented by video and photographs, underscore why the tunnels were considered a major threat to the Israeli military in Gaza even before the war started.
But Israeli officials and soldiers who have since been in the tunnels — as well as current and former American officials with experience in the region — say the scope, depth and quality of the tunnels built by Hamas have astonished them. Even some of the machinery that Hamas used to build the tunnels, observed in captured videos, has surprised the Israeli military.
The Israeli military now believes there are far more tunnels under Gaza.
In December, the network was assessed to be an estimated 250 miles. Senior Israeli defense officials, who spoke on the condition of anonymity to discuss intelligence matters, are currently estimating the network is between 350 and 450 miles — extraordinary figures for a territory that at its longest point is only 25 miles. Two of the officials also assessed there are close to 5,700 separate shafts leading down to the tunnels.
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