In addition to battlefields

https://www.google.com/maps/place/Ultimate Flags/@30.0572968,-83.0357624,18.14z/data=!4m15!1m8!3m7!1s0x88de9f6c3387ba4d:0x195ce243060912c9!2sUltimate Flags!8m2!3d30.056866!4d-83.0347066!10e1!16s%2Fg%2F11j30mz36v!3m5!1s0x88de9f6c3387ba4d:0x195ce243060912c9!8m2!3d30.056866!4d-83.0347066!16s%2Fg%2F11j30mz36v?entry=ttu&g_ep=EgoyMDI2MDMyNC4wIKXMDSoASAFQAw%3D%3D

In addition to battlefields, flags also marked really good areas inclusive of hospitals or give depots wherein injured squaddies gained care or supplies throughout wartime crises.