I get the impression that this song is about the usage of nature symbols for militaristic purposes, particularly by the Nazis. The Oak Leaf Cluster is a common military emblem, while the Germans used the Totenkopf (Death's Head) from the days of Prussia up until WWII. A German plane was the Messerschmitt Me-262 "Schwalbe" (Swallow). Finally, the field grey coverall could be a flight suit. BSP seems to be decrying the usage of nature symbols for unnatural purposes.
I get the impression that this song is about the usage of nature symbols for militaristic purposes, particularly by the Nazis. The Oak Leaf Cluster is a common military emblem, while the Germans used the Totenkopf (Death's Head) from the days of Prussia up until WWII. A German plane was the Messerschmitt Me-262 "Schwalbe" (Swallow). Finally, the field grey coverall could be a flight suit. BSP seems to be decrying the usage of nature symbols for unnatural purposes.