War monitors have warned the Israel Army of Hamas' resurgence in North Gaza just days after the IDF claimed that it had cleared the area of Al-Qassam Brigades fighters. Israeli forces reducing their footprint in north Gaza from December 31, allowed the re-emergence of Hamas-backed governing bodies and Hamas fighters to reconstitute militarily, according to the latest assessment by the U.S.-based think tank ISW and the CTP. Watch for more details.