By the end of the 19th century, the Conservatives had moved away from their one-nation ideology and were increasingly supportive of unrestricted capitalism and free enterprise. During the interwar period between 1919 and 1939, public fear of Bolshevism restored the Conservative Party to one-nationism. It defined itself as the party of national unity and began to support moderate reform. As the affects of the Great Depression were felt in Britain, the party was drawn to even greater levels of state intervention. Conservative prime ministers Neville Chamberlain and Stanley Baldwin pursued an interventionist, one-nation approach which won support because of its wide electoral appeal. Throughout the post-war consensus of the 1950s and 1960s, the Conservative Party continued to be dominated by one-nation conservatives whose ideas were inspired by Disraeli. The philosophy was updated and developed by the new conservatism movement led by Rab Butler. New conservatism attempted to distinguish itself from the socialism of Anthony Crosland by concentrating welfare on those in need and encouraging people to help themselves, rather than foster dependency on the state.