A seven-hour humanitarian cease-fire in Gaza has ended. Mark Regev, spokesman for Israeli Prime Minister Benjamin Netanyahu, discussed the next steps with Bill Hemmer.

Regev described the operation to find and destroy Hamas' network of tunnels as being in the "end stages." When that is over, Israeli forces will re-deploy into defensive positions.

He said Hamas built dozens of "elaborate" tunnels over the years, but the "overwhelming majority" have now been taken out.

"Their idea was to do a mass-casualty terror attack, infiltrating at the same time a high number of death squads into Israel armed with explosives, automatic weapons, rocket-propelled grenades. To have maybe 100 terrorists cross the frontier together, attacking communities all across the south of Israel," said Regev.

Regev said when this conflict ends, Israel and the U.S. must work with other allies to make sure Hamas does not re-arm. He predicted Iran will once again try to get missiles to Hamas, likening the terror group to "an alcoholic with a bottle of alcohol."

"They can't say no. If they have those missiles, they'll fire them."

Hemmer asked how Hamas has been able to amass an arsenal of more than 5,000 rockets.

Regev said Israeli forces knew about the rockets, and therefore invested heavily in the Iron Dome missile defense system to protect civilians against the attacks. He said Israel also knew about the construction of the cross-border tunnels, but is only now figuring out where each one is located.

Regev said on Friday, Israel had numerous assurances that Hamas would respect a cease-fire agreement, then launched an attack that killed three Israeli soldiers after less than an hour.

Watch the interview above. In the video below, John Huddy reported on Happening Now on the latest developments.

Plus, tune in tonight at 10p/1a ET as Sean Hannity brings us the latest from Israel.