The Israeli ambassador to the UK told ITV1's Daybreak the country was reluctant to send troops into Gaza, but the violence meant it "could not sit still". Daniel Taub said he was concerned the move may risk losing international support, but the lives of citizens had to be protected.
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.