You might have deemed our long gun-deck
Two hundred feet of hell.
The River Fight (published 1864). Compare: "War is hell", attributed to William Tecumseh Sherman; "This is the soldier brave enough to tell, The glory-dazzled world that 'war is hell'", Henry van Dyke, On the St. Gaudens Statue of Sherman.
Since what unnumbered year
Hast thou kept watch and ward
And o’er the buried Land of Fear
So grimly held thy guard?