 Engels also wrote a number of newspaper articles including "The Campaign for the German Imperial Constitution" which he finished in February 1850, and "On the Slogan of the Abolition of the State and the German 'Friends of Anarchy'" written in October 1850.In April 1851, he wrote the pamphlet "Conditions and Prospects of a War of the Holy Alliance against France".Marx and Engels denounced Louis Bonaparte when, on 2 December 1851, he carried out a coup against the French government and made himself president for life.