Palestinian demonstrators wave their national flags while others burn tyres during a protest against an Israeli military raid. Faced with recurring attacks from Hamas militants tunnelling under Israel’s border fence, Israel Prime Minister Benjamin Netanyahu proposed a very concrete solution — build a bigger wall. The images taken on Sunday and analysed on Tuesday showed gaping holes in three sections of the border wall, the largest more than 70 metres (230 feet) wide. Once the wall was breached, Hamas fighters streamed through by the hundreds. Under Trump, the US expanded a joint initiative with Israel started under the Obama administration to develop technologies for detecting underground tunnels along the Gaza border defences.