China maritime militia activity in SCS peaked in 2025

The Role of China's Maritime Militia Activity in the South China Sea A Record High in 2025

The South China Sea (SCS) has been a hub of maritime activity in recent years, with China's maritime militia playing a significant role in the region. In 2025, China's maritime militia deployed a record number of vessels in the SCS, with a daily average of 241 militia vessels operating across monitored reefs. This represents the highest level of maritime militia activity observed since the Asia Maritime Transparency Initiative (AMTI) began systematic monitoring in 2021.

The Rise of China's Maritime Militia A Growing Force in the SCS

China's maritime militia has been a growing force in the SCS, with the country's Spratly Backbone Fishing Fleet playing a significant role in the region. This fleet is composed of professional militia units and civilian vessels, and has been involved in a number of disputes with neighboring countries. In 2025, the maritime militia deployed a record number of vessels in the SCS, with the majority of these vessels being part of the Spratly Backbone Fishing Fleet.

Key Findings Insights from Satellite Imagery

The AMTI's analysis of satellite imagery revealed several key findings, including

A daily average of 241 militia vessels operating across monitored reefs in 2025, the highest level observed since 2021.
The majority of these vessels were part of the Spratly Backbone Fishing Fleet.
The militia fleet was detected in all reefs monitored by the AMTI, with activity shifting towards Mischief Reef and Whitsun Reef.
The study found a seasonal pattern in militia activity, with vessel presence peaking in the spring and summer.

Regional Implications A Challenge to Territorial Claims

The rise of China's maritime militia in the SCS has significant implications for the region. The increased presence of militia vessels in the area is likely to be seen as a challenge to the territorial claims of neighboring countries, including the Philippines. The maritime militia's activities may also be seen as a way for China to assert its dominance in the region and to project its power.

Conclusion A Call for Cooperation

In conclusion, China's maritime militia has played a significant role in the SCS in 2025, with the country deploying a record number of vessels in the region. The maritime militia's activities are likely to have significant implications for the region, and may be seen as a challenge to the territorial claims of neighboring countries. As tensions continue to rise in the SCS, it is essential that countries in the region work together to find a peaceful resolution to these disputes.

Keywords South China Sea, China's maritime militia, Spratly Backbone Fishing Fleet, Asia Maritime Transparency Initiative, satellite imagery.

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