Sorry, it is not the Kipling but I think this is the one you want

Sussex by the Sea
By W. Ward-Higgins (d 1936)

Now is the time for marching
Now let our hearts be gay
Hark to the merry bugles
Sounding along the way
So let our voices ring, boys
And take your time from me
And I'll sing you a song as we march along
Of Sussex by the sea!

Chorus

For we're the men from Sussex
Sussex by the sea
We plough and sow and reap and mow,
And useful men are we
And when you go to Sussex
Whoever you may be
You may tell them all that we stand or fall
For Sussex by the sea!
Oh Sussex, Sussex by the sea
You may tell them all that we stand or fall
For Sussex by the sea!

Up in the morning early
Start at the break of day
March till the evening shadows
Tell us its time to stay
We're always moving on, my boys
So take the time from me
And sing this song as we march along
Of Sussex by the sea

Chorus

Sometimes your feet are weary,
Sometimes the way is long
Sometimes the day is dreary
Sometimes the world goes wrong
But if you let your voices ring
Your care will fly away
So we'll sing a song as we march along
Of Sussex by the sea!

Chorus

Light is the love of a soldier
That's what the ladies say
Lightly he goes a-wooing
Lightly he rides away
In love and war we always are
As fair as fair can be
And a soldier boy is the ladies joy
In Sussex by the sea

Chorus

Far o'er the seas we wander
Wide thro' the world we roam
Far from the kind hearts yonder
Far from the dear old home
But ne'er shall we forget, my boys
And true we'll ever be
To the girls so kind that we left behind
In Sussex by the sea

Chorus

^^