If you want to never die, build a city on a square completely surrounded by ocean.
The war cannot end for you, giving you time to continue building up your military for an offensive rush on the tories. Also gives you time for Foreign Intervention.
The Col Edit utility is awesome. You can get it here
http://www.colonization.biz/download.htm.
or here
http://www.civgaming.net/col2/col2dwn.shtml