This is actually the opening line to the march ‘The British Grenadiers’, an English song dating back to the 17th century with about the same jingoism factor as ‘Rule Britannia’ or ‘Land of Hope and Glory’:
Some talk of Alexander, and some of Hercules,
Of Hector and Lysander, and such great men as these;
But of all the world’s brave heroes there’s none that can compare
With a tow, row, row, row, row, row, to the British Grenadier.