helped kurdish forces pusht isis fighters away from villages, away from the roads, away from the mosul dam. the biggest fear about the dam. isis might weaponize it, causing a catastrophic flood, that could send a 65-foot high wall of water through mosul within hours and flood baghdad within days. up to 500,000 could be killed. that s the dam. that little ground out there reporter: general fattah, surveyed the field with us. smoke from air strikes rising in the distance. and on the ground, a deadly threat left behind. the general showed us these holes along the roadside where isis planted ieds. what is this? homemade chemical explosives. so a welcome victory over isis but a long struggle still ahead. terry moran, abc news, near the mosul dam, iraq. israel and hamas this morning have extended a cease-fire by 24 hours, just minutes before it was set to expire at midnight. the two sides can now continue