Israel expanded its ground operation in Gaza with infantry and armored vehicles backed by “massive” strikes from the air and sea, including the bombing of Hamas tunnels — a key target in its campaign to crush the territory’s ruling group after its bloody incursion in Israel three weeks ago. The bombardment also knocked out communications in Gaza, creating a near-blackout of information from the besieged enclave and largely cutting off the territory’s 2.3 million people from the outside world. 📸 : Menahem Kahana/AFP via Getty Images, Mahmud Hams/Getty Images, Jack Guez/AFP via Getty Images, and Omar El-Qattaa/AFP via Getty Images