<p>John Grigg's four volume life of Lloyd George is one of the great political biographies. This, the final volume, opens with Lloyd George's succession to the Premiership in December 1916, when Britain faced starvation and defeat through the German U-boat campaign, its allies France, Russia and Italy were tottering, the Liberal Party was bitterly divided and unrest in Ireland was growing. Worst of all, military chiefs regarded themselves as at l...