"The Healing of Nations and the Hidden Sources of Their Strife" by Edward Carpenter explores the effects that war has on a nation and its citizens. Written during the course of World War I, the book is heavily inspired by Carpenter's personal experiences and those he witnessed. It also describes the social forces that led to the start of the "Great War" in the hopes that it could be learned from in the future.
Engels
The Rise of Socialism : 1884-1918
The Drama of Love and Death : Enriched Edition. A Metaphysical Inquiry into Desire, Mortality, and Spiritual Evolution
Civilisation (Annotated) : Enriched Edition. Its Cause and Cure; and Other Essays
Pagan and Christian Creeds : Enriched edition.
The Drama of Love and Death: A Study of Human Evolution and Transfiguration
The Drama of Love and Death: A Study of Human Evolution and Transfiguration
The Intermediate Sex
Pagan and Christian creeds: their origin and meaning
Pagan and Christian Creeds
Pagan and Christian Creeds: Their Origin and Meaning