SORONG, Indonesia -- A group of slender yet muscular youths clad in straw loincloths, their bodies adorned with swirls of white paint, recently marched in formation onto the modest sports field in Sorong, a coastal town in the eastern Indonesian province of West Papua. As they approached, people crowding around stalls selling the famous hand-woven bags of the region lifted their heads and moved onto the stone podiums surrounding the field.