PARIS (AFP) - Billionaire L'Oreal heiress Liliane Bettencourt is ready for "nuclear war" with her daughter and has asked her lawyers to revoke a reconciliation deal the two struck last year, according to a French Sunday paper. Francoise Bettencourt-Meyers had, in one of a series of lawsuits, tried to have her 88-year-old mother declared mentally unfit to manage France's largest private fortune, but in December the two announced that they had resolved their differences. However Bettencourt's laywer, Jean-Rene Farthouat, told France's Journal du Dimanche that relations have turned hostile again.