 Released prisoners in the West Bank have also engaged in violent activity, and Israeli authorities arrested 40 of them for rioting, hurling Molotov cocktails, handling funding for terrorism, and other acts.In 2014, the IDF launched Operation Brother's Keeper in response to the disappearance of three Israelis in the West Bank.Part of the operation included rearresting some of the Palestinians released under the Gilad Shalit prisoner exchange.