One of my great pleasures when it comes to Civ 1 is to play "World police" the american way. Starting with americans on the US continent or in a new world. Trying to hold back the other civs development with military force and then protect the weaker civilisations from the stronger ones. But one has to be quick! To send military units to defend a weak civilisations last two or three cities against the aggressor isnt the easiest, especially not when we have to deal with the aggressive russians, zulus, greeks or the mongols. And there is always a risk that the civ you are defending sneak-attacks you! Civilization is a great game for experimenting, but I prefer Civ 1 in just that matter, because in Civ 1 a Phalanx can defeat a Cannon, and a Frigate can kill a Cruiser or Battleship. One of the funniest part is when you place for ex. a Phalanx. a musketeer or a Rifleman on a mountain or a hill and fortify it. The enemy tries to attack you with their strongest units, but fails!