Gaza's Tunnel Network Far Larger Than Previously Estimated

Israeli military faces a daunting task as it battles to disable an extensive and strategically vital tunnel network, with the full extent of the challenge yet to be determined.

Israeli military officials estimate the network of tunnels under Gaza to be between 350 and 450 miles, significantly more than the previous estimate of 250 miles.
There are believed to be close to 5,700 separate shafts leading down to the tunnels.
Hamas has invested heavily in the tunnels, using them as military bases and arsenals, and to move forces undetected and protect top commanders.
Israeli forces are currently in heavy fighting in Khan Younis, southern Gaza’s largest city, where about 100 miles of the tunnels are located.
Despite progress in locating and destroying parts of the tunnel network, officials caution that disabling the entire network could take years.