Israel appears likely to stage a ground assault on Gaza in response to deadly weekend attacks by Hamas, risking close-quarters fighting in densely populated areas, underground tunnels and around hostages.

Israel's government Monday said it would "immediately cut (its) water supply to Gaza" as part of a "complete siege" on the Hamas-controlled territory.

Next, "Israel will launch the largest joint (air/sea/land/space) operation against Gaza in history," John Spencer, an expert at the Modern War Institute at U.S. military academy West Point, predicted on X, formerly Twitter.