Foggy Dew is the name of several Irish ballads, and of an Irish lament. The song chronicles the Easter Rising of 1916, and encourages Irishmen to fight for the cause of Ireland, rather than for the British Empire, as so many young men were doing in World War I.

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As down the glen one Easter morn to a city fair rode I
There Armed lines of marching men in squadrons passed me by
No fife did hum nor battle drum did sound it's dread tattoo

But the Angelus bell o'er the Liffey swell rang out through the foggy dew

Right proudly high over Dublin Town they hung out the flag of war
'Twas better to die 'neath an Irish sky than at Sulva or Sud El Bar
And from the plains of Royal Meath strong men came hurrying through

While Britannia's Huns, with their long range guns sailed in through the foggy dew

'Twas Britannia bade our Wild Geese go that small nations might be free
But their lonely graves are by Sulva's waves or the shore of the Great North Sea
Oh, had they died by Pearse's side or fought with Cathal Brugha

Their names we will keep where the fenians sleep 'neath the shroud of the foggy dew

But the bravest fell, and the requiem bell rang mournfully and clear
For those who died that Eastertide in the springing of the year
And the world did gaze, in deep amaze, at those fearless men, but few

Who bore the fight that freedom's light might shine through the foggy dew