Blending the Enlightenment ideal of progress with the Christian mandate for compassion, humanitarianism sought to alleviate suffering and improve society. In Britain, the drive to end the slave trade exemplified humanitarianism. Other efforts included prison reform and laws to restrict child labor, prostitution, and alcohol use. Reformers provided food and shelter for homeless people in urban slums, sought to educate poor children, improve hospitals and working conditions in the factories. Both liberal Christians of the Social Gospel and evangelical groups, such as the Salvation Army, worked for humanitarian causes. On the continent of Europe, the Inner Mission was a parallel movement.