What is the importance of the battle skies during WWII in the novel, A God in Ruins?

The battle skies of World War are important for the reader to note as a setting. Teddy was a pilot in the second World War, so he spent a lot of time in the battle skies of the war. Teddy's personal character was set in place from his wartime experiences, much of which was in the air during a bomber stream or a targeted mission. In the battle skies Teddy saw death and destruction to a great extent, since he had a bird's eye view of the ground and air battles.