RNZI senior journalist Johnny Blades discusses two unique sets of small islands facing existential threats. Takuu (also known as Mortlock) is a set of islands in a PNG atoll chain, populated by Polynesians facing sea-level rise threat. The other is Tinian and Pagan, a pair of Northern Marianas islands which the US military is looking to use for large-scale war games exercises. The locals have taken out a federal lawsuit against the US military plans.