I remember playing this game for hours and hours as a little kid, on an old DOS computer. A fun meta-game is to try and just keep the game going as long as poss

I remember playing this game for hours and hours as a little kid, on an old DOS computer. A fun meta-game is to try and just keep the game going as long as possible, which means trying to find the right balance of keeping at least one competitor strong enough to survive but too weak to go to war with you or someone else. And hope you don't die in a nuclear holocaust caused by some non-neighboring nations like Iran and Iraq.