Israel's multi-billion dollar Iron Wall was supposed to keep Hamas militants out. Instead Israelis were left virtually defenceless as fighters from Gaza swept through town after town killing more than 1,000 people. By analysing footage from Hamas, Israeli civilians and CCTV, we piece together a minute-by-minute account of how the attack unfolded. (Subscribe: ) ------- Watch more of our explainer series here - Get more news at our site - Follow us: Facebook - Twitter - TikTok - @c4news Instagram -
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