When people think of a tunnel network many think of small scurry-holes. In fact, besides being longer than the entire London Underground, the network was also much more elaborate. In the 140 square miles of Gaza, Hamas spent its years in power constructing over 350 miles of tunnels, with around 6,000 different tunnel entrances. Many of these were hidden in civilian houses, mosques, hospitals, and other nonmilitary buildings. Like storing weapons in such places, this is a breach of the Geneva Conventions, which are meant to preclude an army hiding military infrastructure in civilian buildings.
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