I need to charge up my phone bactrim acne 'That great black tornado," as Theodore Roosevelt later described World War I, began its violent tear through Europe in August 1914. Both sides expected a short war. Instead, four years of slaughter followed. The Great War, as Margaret MacMillan notes, marked a turning point in modern history, shattering hopeful views of human progress and leaving a sense of loss and waste. How could such a catastrophe have come to pass? Or, as Ms. MacMillan frames the question, why did peace fail?