The South China Sea (SCS) remains one of the most volatile geopolitical flashpoints in 2025, with China’s assertive maritime claims clashing against those of Southeast Asian nations, notably the Philippines and Vietnam. While territorial sovereignty and strategic control dominate headlines, the human rights dimensions of this dispute are often overlooked. This analysis explores the ongoing tensions through a human rights lens, focusing on the impact of China’s maritime coercion on the rights and livelihoods of local populations, the legal implications under international law, environmental degradation, and the broader consequences for regional stability and human security.
Overview of the South China Sea Dispute in 2025
China claims nearly the entire South China Sea under its “nine-dash line,” a claim rejected by the 2016 Permanent Court of Arbitration ruling in favor of the Philippines. Despite this, China continues to assert control through military patrols, coast guard deployments, and the construction of artificial islands. In 2025, tensions remain high, with China employing “swarming” tactics—deploying numerous coast guard and maritime militia vessels—to intimidate Filipino fishermen and government vessels in contested waters such as Scarborough Shoal and the Spratly Islands.
The Philippines, backed by the United States and other allies, has sought to reinforce its presence in these waters, including the ongoing maintenance of the grounded warship Sierra Madre at Second Thomas Shoal. However, the Philippines’ operational capacity remains limited compared to China’s overwhelming maritime power, constraining its ability to resist Chinese coercion effectively.
Human Rights Impact on Coastal Communities and Fishermen
The most immediate human rights concern arising from the South China Sea dispute is the impact on the livelihoods and safety of coastal communities, particularly Filipino fishermen. These communities depend on fishing for food security and economic survival. China’s aggressive maritime tactics—ranging from physical harassment, ramming, and water cannon attacks to blocking access to traditional fishing grounds—directly infringe on the right to livelihood, freedom of movement, and security of person of these fishermen.
For example, in 2024, multiple incidents were reported where Chinese coast guard vessels rammed Philippine boats near Second Thomas Shoal, injuring Filipino coastguard personnel and fishermen. These coercive actions not only threaten lives but also disrupt fishing activities, exacerbating poverty and food insecurity in vulnerable coastal communities.
The Philippine government has lodged repeated protests against these violations, highlighting the human toll of geopolitical competition. Yet, without effective enforcement of international law or protection mechanisms, these communities remain exposed to ongoing harassment and intimidation.
Violations of International Law and Accountability Challenges
The South China Sea dispute is deeply entangled with questions of international law, particularly the United Nations Convention on the Law of the Sea (UNCLOS). The 2016 Permanent Court of Arbitration ruling invalidated China’s expansive claims, affirming the Philippines’ sovereign rights over its exclusive economic zone (EEZ). However, China has refused to recognize this ruling and continues to assert control through physical presence and military exercises.
China’s disregard for international legal rulings undermines the rule of law and weakens the framework designed to protect human rights and sovereign rights in maritime spaces. This erosion of legal norms increases the risk of conflict and leaves affected populations without recourse to justice or protection.
Efforts to hold China accountable face significant diplomatic and geopolitical hurdles. China’s growing military and economic power, coupled with its strategic importance, complicate international responses. Meanwhile, claimant states like the Philippines face limitations in enforcement capacity and rely heavily on international support, particularly from the United States, to bolster their position.
Environmental Degradation and Its Human Rights Consequences
China’s extensive land reclamation and artificial island construction have caused severe environmental damage in the South China Sea. Coral reefs, vital for marine biodiversity and fishery sustainability, have been destroyed at alarming rates. According to environmental assessments, over 3,000 hectares of coral reefs have been damaged or destroyed due to dredging and construction activities.
This environmental degradation threatens the right to a healthy environment and the long-term viability of fisheries that local communities depend on. The loss of biodiversity and fish stocks undermines food security and economic stability for millions of people in the region.
Furthermore, pollution from military activities and increased vessel traffic exacerbates marine ecosystem stress, compounding the human rights impact on coastal populations.
Broader Regional Stability and Human Security Implications
The South China Sea dispute is not merely a territorial conflict but a challenge to regional peace and human security. The risk of accidental clashes, miscalculations, or escalation remains high given the frequent close encounters between Chinese and Philippine vessels and the ongoing military exercises by China and other regional actors.
Such instability threatens the right to life, security, and freedom from fear for populations in the region. The militarization of disputed waters diverts resources from development and humanitarian needs, further marginalizing vulnerable communities.
Additionally, the dispute affects freedom of navigation and international trade, with over $3 trillion in annual maritime trade passing through the South China Sea. Disruptions could have global economic consequences, indirectly impacting human welfare beyond the immediate region.
The Role of International Actors and Human Rights Advocacy
International actors, including the United States, ASEAN countries, and the United Nations, play critical roles in addressing the human rights dimensions of the South China Sea dispute. The U.S. has increased joint military exercises with the Philippines and other allies to deter Chinese aggression and uphold freedom of navigation.
Human rights organizations emphasize the need for:
- Respect for international law, including UNCLOS and the 2016 arbitration ruling.
- Protection of the rights and livelihoods of coastal communities.
- Environmental conservation to safeguard marine ecosystems.
- Diplomatic efforts to reduce tensions and prevent conflict escalation.
However, balancing geopolitical interests with human rights priorities remains challenging. The international community must strengthen mechanisms for accountability and support claimant states in protecting their populations.
The South China Sea dispute in 2025 exemplifies how geopolitical conflicts can have profound human rights consequences. China’s maritime coercion infringes on the rights of Filipino fishermen and coastal communities, undermines international legal norms, and causes significant environmental harm. These factors collectively threaten regional stability and human security.
Addressing these challenges requires a comprehensive approach that integrates human rights considerations into diplomatic and security strategies. Upholding the rule of law, protecting vulnerable populations, and preserving the marine environment are essential to ensuring peace and justice in one of the world’s most contested maritime regions.
For human rights-focused think tanks, this situation underscores the urgent need to highlight the human cost of territorial disputes and advocate for policies that prioritize the protection of human rights alongside geopolitical interests.
