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CONCEPTUAL ANALYSIS article

Front. Polit. Sci.

Sec. International Studies

Volume 7 - 2025 | doi: 10.3389/fpos.2025.1670797

Making Waves: Marine Research Vessels in China and Vietnam's Overlapping Maritime Zones

Provisionally accepted
  • 1Universitas Hasanuddin, Makassar, Indonesia
  • 2University of Bristol, Bristol, United Kingdom

The final, formatted version of the article will be published soon.

Past studies have emphasized the significance of reclamations, oil and gas drilling operations, and the deployment of coast guards, as symbols of effective occupancy in grey zone areas of the South China Sea. Unfortunately, the rising number of Chinese research ships infiltrating Vietnam's Exclusive Economic Zone (EEZ) seems to be disregarded in its significance, as scholars interpret the actions as taken-for-granted events. This qualitative, multiple empirical case study aims to elucidate the maritime events, situated within the analytical framework of maritime diplomacy's persuasive and coercive maritime conduct. Utilizing data attained from AIS and reported by Marine Traffic, Sea Vision, SeaLight, and Windward between 2019 and 2025, this study concludes the following: 1) the deliberate deployment of Chinese research ships as means to project the state's maritime power despite the lack of understanding as whether the operations fall within the spectrum of scientific, military, or commercial research; 2) the function of compelling Vietnam to abandon or cancel the oil and gas drilling operations undertaken within its EEZ; and 3) populating the seas as means to display effective occupation and weaken the adversary's claim by establishing a landscape of latent threats at sea.

Keywords: South China Sea1, Research Ships2, Maritime Diplomacy3, Grey Zone Area4, Vietnam5

Received: 22 Jul 2025; Accepted: 02 Sep 2025.

Copyright: © 2025 Putra. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

* Correspondence: Bama Andika Putra, Universitas Hasanuddin, Makassar, Indonesia

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