CAIRO/GAZA/JERUSALEM (Reuters) - Israel's war on Hamas will last months, Israel's military chief said, as a string of incidents outside the Gaza Strip highlighted the risk of the conflict spreading. Israel's Chief of Staff Herzi Halevi told reporters in a televised statement on Tuesday from the Gaza border that the war would go on "for many months". Israeli actions intensified around Christmas, particularly in a central area just south of the seasonal waterway that bisects the Gaza Strip. According to the Islamic Waqf, or religious affairs ministry, the bodies were collected from the northern part of the Gaza Strip. Yemen's Iran-backed Houthi militia claimed responsibility for a missile attack on Tuesday on a container ship in the Red Sea and for an attempt to attack Israel with drones.