I agree with @border142, this is a song about the last two people as the world has ended, due to (nuclear) war. They are enjoying their alone time, and perhaps final moments. At least they will "carry war no more" in their lives or hereafter.
Words like "decay", and "insects in grass" lead me to believe the war that happened was nuclear, creating radioactive decay leaving only cockroaches alive in its wake.
I agree with @border142, this is a song about the last two people as the world has ended, due to (nuclear) war. They are enjoying their alone time, and perhaps final moments. At least they will "carry war no more" in their lives or hereafter.
Words like "decay", and "insects in grass" lead me to believe the war that happened was nuclear, creating radioactive decay leaving only cockroaches alive in its wake.
The rest of the words are very self explanatory.