Here you will find the Poem Sleep On! of poet William Schwenck Gilbert
Fear no unlicensed entry, Heed no bombastic talk, While guards the British Sentry Pall Mall and Birdcage Walk. Let European thunders Occasion no alarms, Though diplomatic blunders May cause a cry "To arms!" Sleep on, ye pale civilians; All thunder-clouds defy: On Europe's countless millions The Sentry keeps his eye! Should foreign-born rapscallions In London dare to show Their overgrown battalions, Be sure I'll let you know. Should Russians or Norwegians Pollute our favoured clime With rough barbaric legions, I'll mention it in time. So sleep in peace, civilians, The Continent defy; While on its countless millions The Sentry keeps his eye!