Tension continues to rise on the Gaza border, where Israel has deployed more tanks and infantry. It’s threatening an all-out offensive unless a soldier abducted by Palestinian militants is freed. Israeli officials have been talking tough.“We have to carry out operations that will cost lives,” said Defence Minister Amir Peretz. “Militants must understand there’s a price to pay for attacks against Israel. There have also been reports that Israel could cut off food supplies to Gaza if Gilad Shalit is not released. The militants holding him have issued their first demands, calling for the release of Palestinian prisoners – conditions already rejected by Israel. A spokesman for one of the militant groups which took part in Sunday’s raid on a border post said the captured corporal was being kept in a safe place, beyond the reach of Israeli forces. Shalit’s family has appealed to his captors to treat him well and provide him with medical care. It’s thought the 19-year-old may have been injured in the militant attack which left two of his fellow soldiers dead.