Pillars of Fire (The Battle of Messines)

It were the good tunnels, 26 ways of doom
 One million pounds of ammonal
 Were packed into the underground pits
 Our artillery was silenced, for the first time in years all was quiet
 The sky was a very dark blue in the pre-dawn light
 And I swear we heard how the nightingale sings
 3 a.m, 7th June
 We demolished the bottom of Messines
 Trigger down, torn apart by the whirlpool of flame
 Nineteen explosions, 10,000 were killed, colonel said
 The boches were stunned, dazed and horror-stricken
 If they were not killed outright
 Many of them lay dead in the great craters
 Opened by the mines, secretly planted by "the Moles"
 Better the devil you know, than the devil you don't
 And I swear we heard how the nightingale sings
 3 a.m, 7th June
 We demolished the bottom of Messines
 Trigger down, torn apart by the whirlpool of flame
 10,000 were killed, colonel said
 It were the good tunnels