The vast Pacific Islands region, or Oceania, has long been considered an “American lake,” its numerous small island states and territories heavily dependent on the United States and its western allies, particularly Australia, New Zealand, and France, for development assistance, trade, and security. However, economic and political ties with Asian states have become increasingly important in recent decades. Japan has been active in Oceania since the 1980s, motivated by its long-term interests in natural resources, particularly fisheries, as well cognizant of the “burden sharing” obligations of its strategic alliance with the United States. Japan is now the major aid donor to the region as a whole, and since 1997 has hosted regular, high-profile summit meetings with Pacific Island leaders. The substantial increase in aid announced by Prime Minister Koizumi at the most recent of these meetings, held in Okinawa in May 2006, was in part a response to mounting political instability in Oceania. It was also an attempt to counter China's growing interest in the region, signaled by Beijing's summit meeting with island leaders in Fiji the previous month, as well as Taiwan's ongoing and aggressive use of “dollar diplomacy” to win support from island states. This article discusses some key issues shaping the political environment in which this escalating strategic competition is taking place.