This appears to be a very complex dispute involving several countries all with vague claims to this or that part of a group of tiny islands with no indigenous population. It's difficult to see the US getting involved for many reasons including that of drawing a parallel with the Falkland Islands, where Obama has adopted a position of neutrality and where the UK not only has a strong legitimate claim to the territory but there is a population with a history going back about 180 years and who wish to remain as a self-governing British Overseas Territory.