For Whom the Bell Tolls" is a song by Metallica on their
1984 album Ride the Lightning. It is about war and the human
spirit, and is a reference to a chapter where El Sordo,
another guerilla leader, takes a position on a hill,
surrounded on all sides, and he and his five comrades are
killed by an airstrike. This is in the line "Men of five
still alive through the raging glow, gone insane from the
pain that they surely know."