UN Chief: Israel-Gaza Conflict Must Stop

Not much the UN can do to "de-escalate" though

As international pressure mounted Monday for an end to the Israeli-Palestinian violence that has left dozens dead and hundreds wounded, U.N. Secretary-General Ban Ki-moon flying to the region to personally appeal for a cease-fire.

Ban's call for a truce came on the heels of the single deadliest attack -- an Israeli airstrike that killed a family of 10 -- in the conflict that began with militant rocket attacks from Gaza, to which Israel responded with an aerial offensive.