Israeli soldiers skirmish with Hamas inside Gaza amid air strikes in area.

ISLAMABAD -- Israel pounded hundreds of targets in Gaza from the air on Monday while its soldiers fought Hamas fighters during raids into the besieged Palestinian enclave where deaths are soaring and civilians are trapped in harrowing conditions. Gaza's health ministry said 436 people had been killed in bombardments over the past 24 hours, most in the south of the narrow, densely populated territory, next to which Israeli troops and tanks have massed for a possible ground invasion. The Israeli military said it had struck more than 320 targets in Gaza over 24 hours, including a tunnel housing Hamas fighters, dozens of command and lookout posts, and mortar and anti-tank missile launcher positions.

With the territory's 2.3 million people running short of basics, European leaders...