Potential national anthem encapsulating the folly in conflict (4,2,3,6)

'potential national' is the definition.
I don't know anything about this answer so I can't tell whether this works.

'anthem encapsulating the folly in conflict' is the wordplay.
I cannot really see how this works, but
'anthem' could be 'hymn' (synonyms) and 'hymn' is found within the answer.
'the' could be 't' (the is pronounced as a 't' sound in some dialects) and 't' is present in the answer.
This may be the basis of clue (or it may be nonsense).

Can you help me to learn more?