The United States is set to undertake a $500 million project to rebuild and expand the main port in Koror, Palau, marking its largest overseas military construction effort next year. The effort involves renovating a deteriorating wharf originally built by Japan during World War II to accommodate U.S. Navy vessels and dredging the harbor to enable deeper access for larger ships.

Palau, a Pacific island nation situated about 800 kilometers southeast of the South China Sea, has a population of approximately 17,000 and limited landmass of less than 177 square miles. While the modernization is intended to enhance regional defense capabilities, the plans have raised concerns among local residents and environmentalists. Many Palauans, recalling historical trauma from World War II when their islands were battlegrounds between U.S. and Japanese forces, worry about the prospect of becoming a target if conflicts escalate between global powers.

“Where would they go? The concern is very real,” said Madelsar Ngiraingas, a local community organizer referencing stories from her elders about the devastating wartime clashes. These apprehensions were also echoed in a petition signed by around 2,000 residents and submitted to Palau’s congress, seeking assurances about civilian safety in any future conflict scenario.

Palau operates under a Compact of Free Association with the United States, which provides the island nation with substantial economic aid and grants Palauan citizens visa-free access to live and work in the U.S. In exchange, the U.S. gains territorial access for military purposes. This reconstruction represents the first major military initiative under that agreement, reflecting Palau’s emerging strategic significance along the so-called "second island chain," a key geopolitical zone monitored closely by both U.S. and Chinese military planners.

Local experts emphasize that Palau’s military profile is growing, but also stress the need for transparent dialogue with residents. “Many Palauans are not against the U.S. military, nor the projects, there just needs to be better communication and discussion around the potential impacts,” Ngiraingas said.

The project also faces scrutiny over environmental risks. Koror’s surrounding waters include UNESCO-designated marine lakes and World Heritage turquoise lagoons known for rich coral biodiversity and species such as endangered dugongs, turtles, and fish. An environmental impact assessment projected that dredging in Malakal Harbour will result in the destruction of over four hectares of coral habitat. Scientists and local traditional leaders have voiced concerns that construction activities could displace sensitive marine wildlife and harm the delicate ecosystem.

Biologist Ron Leidich highlighted the likelihood that sediment plumes from dredging will contaminate nearby protected waters despite planned mitigation measures like underwater silt curtains. He expressed skepticism about promises to halt construction if endangered dugongs approach the site, noting that frequent interruptions could be impractical.

Palau’s President Surangel Whipps acknowledged the urgency of modernizing the aging port infrastructure, describing the existing facilities as “about to collapse.” He emphasized a desire to balance the benefits of shared commercial and defense use with the welfare of the island nation’s people. U.S. military officials said the upgraded port would improve Palau’s capacity for commercial shipping alongside enhancing logistical support for regional security operations. Plans also include a restricted-access warehouse to store naval equipment such as mooring lines and repair gear.

As construction progresses, tensions remain between the strategic imperatives behind the U.S. military expansion and the community’s concerns over safety and environmental preservation. Leidich voiced a somber perspective on the broader stakes, saying, “The thought that all of these beautiful creatures and habitats could be compromised as superpowers slug it out for supremacy is sobering.”