Beam me up

After a mission we'd been flying around
We saw this planet and we went down to the ground
Where and when could we be? - Nobody was sure,
but I had this feeling that I'd been here before
Beam me up
there's no intelligent life
down here where I am
The planet was blue and we could breathe the air
But it tickled my throat was this a poison sphere
The people were separated into different partitions
Many of them fought a war without any logical missions
Beam me up
there's no intelligent life
down here where I am
The computer now told me that this was 300 years back
So, I suddenly realised this was the place of my birth
In the 20th century, this is a planet called Earth!
Beam me up
there's no intelligent life
down here where I am