Rugby union in the Marshall Islands population and geographical factors - their population is 61,963, and lives on 29 coral atolls and 5 isolated islands in the South Pacific Ocean. All of this makes a rugby infrastructure difficult to construct, and the islands are beset by rising sea levels. The geographic future of the Marshall Islands depends on the height of the ocean. No significant land is more than two metres above high water of ordinary tides. This means they are particularly vulnerable to any possible sea level rises caused by global warming. There is also a lack of land for specifically designated rugby pitches. Much
Japanese settlement in the Marshall Islands closer cultural and economic ties with Japan. Japanese firms that were based on the Marshall Islands since the 1960s actively sought joint ventures with local companies from the 1980s onwards, mainly in the fishery sector. Expatriates usually consisted of Okinawan fishermen based at Majuro, where Japanese companies have built smoking and canning facilities to facilitate the processing of tuna catches. The Marshall Islands remained sparsely populated by Japanese settlers, relative to the other mandated Micronesian islands. The first pre-war census of the Marshall Islands counted 490 Japanese among 10,000 Marshallese, and the number of Japanese settlers increased to 680 scattered