What is the fine-grained topic of the following text: Further quotations are from gravesites at the German Military Cemeteries in Huertgen and Vossenack, and, lastly, from signs and advertisements that I and my family saw in the fall of 1964 when we did our hiking through the (by then peaceful and idyllic) Huertgen Forest. Only return the topic.
Quotations from German Military Cemeteries and signs observed during a 1964 hiking trip in Huertgen Forest.