 The second half of the album deals with various war @-@ related issues . While " Southampton Dock " is a lament to returning war heroes and other soldiers heading out to a likely death , " Not Now John " addresses society 's ignorance of political and economic problems . " Get Your Filthy Hands Off My Desert " deals with Waters ' feelings about war and invasion , and " The Fletcher Memorial Home " ( the title is a nod to Waters ' father ) reflects a fantastical application of " the final solution " on a gathering of political leaders including Leonid Brezhnev , Menachem Begin and Margaret Thatcher . The album 's titular song deals with the aftermath of a man 's isolation and sexual repression , as he contemplates suicide and struggles to reconnect with the world around him . The album ends with " Two Suns in the Sunset " , a song that portrays a nuclear holocaust ; the final result of a world obsessed with war and control . 
