Israeli commanders say their troops are ready to move within an hour. In Gaza tonight, there are prayers for peace, and preparations for war. ITV News' John Ray reports.
Today's bombing in Tel Aviv is reminiscent of six years ago and could mark a serious escalation in the conflict.
A truce in Gaza suits all sides but none of the groups seem interested in a long-lasting solution.
A complex system of air defences has been instrumental in protecting Israel's population from incoming rockets.