He wrote a book about what he saw, called "A Memory of Solferino". he published it with his own money in 1862, and sent copies of the book to leading political and military figures throughout Europe. The book did not only describe what Dunant saw, but called for the setting up of national voluntary relief organisations to help nurse wounded soldiers in the case of war. Dunant also called for international treaties to guarantee the neutrality and protection for the wounded and for medics and field hospitals.