YET ANOTHER CEASE-FIRE or YOU CEASE and WE FIRE?

Gaza City (CNN) -- Will it, or won't it, hold? That's the question following word late Monday that Israel and Palestinian factions, including Hamas, agreed to a 72-hour humanitarian cease-fire proposed by Egypt. Even as they agreed to the cease-fire, set to take effect Tuesday morning, both sides appeared suspicious of one another. "The onus is on Hamas," Israeli government spokesman Mark Regev said shortly after announcing on CNN's "The Lead with Jake Tapper" that Israel had accepted the Egyptian proposal. "We are entering this with our eyes open. ...We have been burnt more than once." The sentiment was similar from Hamas spokesman Osama Hamdan, who told CNN as long as Israel honors the agreement, so will the Palestinians. "We hope they can take it and be committed to a cease-fire," he said. News of the cease-fire comes as Israeli Prime Minister Benjamin Netanyahu vowed Monday to finish the military operation to destroy Hamas' network of tunnels.

That operation appeared to be close to an end, with Regev saying Israel will "cease all our ... military activities, all our offensive operations against terrorist taregets in the Gaza Strip." When asked about the tunnels, he said the issue is solving itself. "It's winding up anyway," Regev said. Earlier in the day, the Israel Defense Forces said there were possibly between one and three tunnels left.