<![CDATA[AbstractLeft indent:1.5 cm Right indent: 1.5 cm Language functions as a powerful diplomatic instrument that conveys persuasion, solidarity, and moral commitment in international communication. However, previous studies on speech acts in political discourse have primarily focused on Western leaders, leaving a gap in understanding how Southeast Asian leaders employ English pragmatically in peace diplomacy. This study examines the pragmatic functions of persuasion and solidarity through speech acts in President Prabowo Subianto’s 2025 address to the United Nations General Assembly. Grounded in Searle’s speech act theory and informed by pragmatic frameworks of persuasion and solidarity (van Dijk, 1997; Chilton & Schäffner, 2002), this research explores how linguistic actions embody Indonesia’s peace-oriented stance and humanitarian values. Using a qualitative descriptive approach, both the transcript and audiovisual data of the speech were analyzed to identify directive, commissive, and expressive acts that perform persuasive and solidarity functions. The findings reveal that President Prabowo’s address integrates assertive appeals with empathy, repetition of peace-oriented imperatives, and inclusive pronouns that foster shared moral responsibility across audiences. These strategies demonstrate how English operates as an instrument of intercultural diplomacy and ethical communication, articulating Indonesia’s moral voice in global affairs. The study contributes to pragmatic research on peace discourse by broadening the understanding of how non-Western leaders use language to balance persuasion, empathy, and cooperation through ethical and intercultural pragmatics.Keywords: speech acts, persuasion, solidarity, peace diplomacy, pragmatic ethics]]>
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