It is not often that the United Nations Secretary-General and the president of the European Commission will find their presence in this part of the world overshadowed. Yet such is the lot of Ban Ki Moon and Jose Manuel Barroso, who are in Auckland for the 40th anniversary meeting of the Pacific Islands Forum. Such, also, is the fate of the summit, which starts today and will conclude hours before the start of the Rugby World Cup. Its place in the shade does not, however, mean it is an insignificant occasion.
The appearance of such high-profile world leaders is a tribute to the 16-member forum's longevity. But it also reflects the fact that this is a region in which more countries and international groupings see reasons to become more engaged.
This summit is particularly notable for the diversity and high level of the United States delegation. Its leader, Deputy Secretary of State Thomas Nides, has signalled the determination of the US to have a greater involvement in the Pacific. Clearly, China's growing presence as a donor and trading partner has hit a nerve. And not to be outdone, Beijing will have Vice-Foreign Minister Cui Tiankai at the summit.
Mr Nides suggests the US can help the forum become "a more effective, results-oriented institution, one capable of addressing the region's most pressing challenges". This reflects a widely held view that the forum, despite some successes, has failed to transform potential into region-wide prosperity and social wellbeing. Partly as a consequence, some ailing economies have declared themselves open to support from other than the traditional sources of Australia, New Zealand, the US and Europe.
Forum meetings have customarily sought a polite consensus - the so-called Pacific way of doing things. This approach, and an unwillingness to interfere in one another's domestic affairs, has been gradually diluted, not least because of the need for a strong collective response to the military regime in Fiji. It had, in any case, been a means of disguising many flaws. Nonetheless, Pacific leaders would still look askance at any blundering into their backyard.