Foreign Ministry Strategic Communication in the South China Sea: A Corpus of Official Statements from the DFA (Philippines), MOFA (Vietnam), and MOFA (Malaysia), 2013–2025

This dataset provides a curated corpus of official foreign ministry statements/publications on the South China Sea issued by the Department of Foreign Affairs (Philippines) and the Ministries of Foreign Affairs (Vietnam and Malaysia) from 2013 to 2025. The dataset captures foreign-postured strategic communication, focusing exclusively on outward-facing diplomatic statements intended for international audiences. The corpus is designed to support the systematic analysis of state signaling behavior in the information domain, particularly in the context of maritime disputes and maritime dynamics in the South China Sea. By restricting sources to foreign ministries, the dataset ensures institutional consistency and comparability across cases, isolating the formal diplomatic voice of each state. Each document is paired with structured metadata, including date, country, issuing institution, source type, and thematic indicators such as references to international law (e.g., UNCLOS), explicit mentions of China, maritime incidents, and sovereignty-related claims. The dataset enables both qualitative and quantitative approaches, including content analysis, longitudinal trend analysis, and comparative research across countries. The dataset was constructed through a multi-stage process involving collection, verification, text standardization, and file linkage, ensuring full correspondence between original-language and English-language versions where available. All documents are provided in machine-readable (NVIVO/Python) text formats to facilitate computational analysis and reproducibility. This resource is particularly suited for research on strategic communication, foreign policy signaling, maritime security, and Southeast Asian diplomacy and enables the study of patterns such as rhetorical convergence, divergence in state behavior, and potential lead–lag relationships in official messaging.