Graffiti on the security wall built to separate Jewish and Arab sectors of Israel. Upon completion, the barrierâs total length will be approximately 760 kilometres (470 mi). Supporters argue that the barrier is necessary to protect Israeli civilians from Palestinian terrorism, including the suicide bombing attacks that increased significantly during the Second Intifada, a period of intensified PalestinianâIsraeli violence, which began in late September 2000 and ended roughly around 2005.