From the "Clancy Brothers and Tommy Makem Live at Carnegie Hall"

Are you ready for a war, for we are the English
Are you ready for a war, for we are the English soldiers

O yes we're ready for a war for we are the Irish
Yes we're ready for a war for we are the Irish soldiers.

Now we only have one arm.....English

Now we have no arms at all...Irish

Now we only have one leg...English

Now we have no legs at all...Irish

Now we are all dead and gone...English

Now we're all alive again ...Irish.

There may be more body parts that could be dispensed with in a tit for tat fashion. Pantomiming the loss of body parts, death and resurrection would provide an opportunity for lots of silliness to contrast the inherent gruesomeness of the lyrics