August 28 1914 The first major naval action between British and German naval forces during the First World War, the Battle of Heligoland Bight.

WE’LL KNOCK THE HELIGO INTO HELIGO   -   Sung by Laurence Rubenstein accompanied by Denese Coulbeck.     https://www.youtube.com/watch?v=ap32LeqW4tg
"We'll Knock the Heligo Into Heligo Out of Heligoland" sung by Arthur Fields, baritone https://www.youtube.com/watch?v=5-JzWbqcQq8
We'll Knock The Heligo-- Into Heligo-- Out Of Heligoland! from Wikipedia    https://en.wikipedia.org/wiki/We%27ll_Knock_The_Heligo--_Into_Heligo--_Out_Of_Heligoland!
Battle of Heligoland Bight (1914) from Wikipedia     https://en.wikipedia.org/wiki/Battle_of_Heligoland_Bight_(1914)