Engels’ Military Writings The Peasants' War in Germany, 1850 Prospects of a War of the Holy Alliance Against France, 1851 Revolutionary Spain: Guerilla Warfare Marx 1854 The Armies of Europe, 1855 On Afghanistan, 1857 Mountain Warfare in the Past and Present, 1857 Po and Rhine, 1859 Lessons of the U.S. Civil War , 1861 The Prussian Military Question and the German Workers' Party, 1865 Notes on the