that we re actually maneuvering aboveground, under ground. reporter: israel s biggest military division ever is adapting. you use all your senses you have, you use your vision sensor, your feel sensor, your smell sensor. reporter: he s invited cnn to go deep into the tunnels. we are told this is the heart of khan yunis, and that hostages are likely underground nearby and that some were held here. this tunnel we re going in here is one where some of the hostages were held. that first round of hostage releases, some of them came out from down here. so how deep does this tunnel go? reporter: our first time to get up close to what s shaping this war. we are moving underground. we re maneuvering underground, we re going to reach each and every militant or agent, every
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Cnn
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