After a week of travel along the Western Front and walking among miles of cemeteries for British, Belgium, French and other soldiers killed in war, historian Adam Hochschild finds a lone, out of the way plot with a large cross and a dozen small ones honoring the 1914 Christmas truce, spontaneously celebrated by soldiers on both sides. He notes that the modest memorial was near where they had played soccer together and that on one of the small crosses someone had carved the word „imagine.“