Ireland.

I am a body thats for sure

- one landmass

Ire I held for my neighbours,so pure

 - "Ire" a clue for "Ireland", I guess...?

My north teamed up while the south went solo

 - Northern Ireland versus Eire.

we remember the severe lack of the potatoe

 - Potato famine

My symbol riddled with the need for peace

- ?

the war of the gods needed to cease

 - Sectarian conflict

green to the left, orange to the right

 - http://en.wikipedia.org/wiki/Flag_of_Ireland

fictional characters at the root of the spite

 - Jesus, Mary, God, etc... (although there is really a lot more than that forming the background of the Troubles, see: http://en.wikipedia.org/wiki/The_Troubles#Background , http://en.wikipedia.org/wiki/Plantation_of_Ulster , http://en.wikipedia.org/wiki/Nine_Years%27_War_(Ireland), http://en.wikipedia.org/wiki/Tudor_conquest_of_Ireland , http://en.wikipedia.org/wiki/Cromwellian_conquest_of_Ireland , etc etc)

Tea father? Drink!

 - the incomparable [Father Ted][1], of course.


  [1]: http://en.wikipedia.org/wiki/Father_Ted