My tasmania comment is about what the US-AU army wargames used to use as the hypothetical invader. they were briefly stupid and used a map of indonesia because of jokes about west irianjaya and 'south iriyan' -and then changed to use the map of tasmania (which btw, is a euphemism for female pubic hair) upside down as the notional invader.
the other reference is to turn-by-turn games of war on maps (I think)