Middle East peace envoy Tony Blair said the ceasefire would not work unless it provided a long term solution for the people of Gaza, and guaranteed Israel's safety.
Speaking to Diplomatic Correspondent John Ray, he said:
"This ceasefire won't work unless it allows us to develop a long-term plan for Gaza, that opens Gaza up, that gives its people respite from what has been an appalling situation for them over many years, and which gives Israel genuine, permanent security."
It's been an emotionally exhausting day in Israel and Gaza as hopes for peace were raised then dashed then raised then dashed again.
In the court of international opinion, this is how Israel wins a battle and still manages to lose the war.
Until the Israelis and the Palestinians find a way of resolving the underlining conflict this will not be more than a pause.