London (CNN) -- Former British Prime Minister Tony Blair writes in a book to be published Wednesday that he feels "anguish" about "the nightmare" that occurred after the U.S.-led overthrow of Saddam Hussein in Iraq, but defends the move, according to the Daily Telegraph.
The British newspaper said its story was based on a foreign-language copy of the book that it had obtained.
Blair, who is in Washington attending the opening of the Middle East peace talks at the White House, said in the book that he will focus "a large part of the life left to me" on working for peace in the region, the newspaper said.
