The destruction caused to the Gaza Strip in last month's Israeli campaign will cost 15 billion dollars to repair, Palestinian President Mahmoud Abbas said in London Thursday, according to dpa. Abbas, who was speaking after talks with British Prime Minister Gordon Brown, said that despite the bitterness and fighting there was "no alternative to peace" in the Middle East". Brown pledged Britain's support for the reconstruction of Gaza, and urged Israel to allow aid to get through to the victims of the conflict.