Taking into account:<p>- Size: neither too big nor too small (Singapore is about 700 square kilometers).<p>- Geographical position: climate (which will change), sea level (which will change, attention to coastlines), topography, soil quality (possibly).<p>- The strategic position: trade routes, access to the sea (possibly).<p>- Colonisibility: a piece of land that is disputed, under-exploited, purchasable, etc.<p>Any idea ?