This writing discusses Indonesia’s security diplomacy strategy in addressing post-conflict radicalization in Poso, Central Sulawesi. After experiencing prolonged communal conflict, the Poso region has become one of the areas most vulnerable to the spread of violent extremist ideology. To respond to this threat, Indonesia has developed a security diplomacy strategy that includes national, regional, and international cooperation. At the domestic level, through institutions such as BNPT, Indonesia implements deradicalization programs, social reintegration, and strengthening of community resilience. Meanwhile, at the regional and global levels, Indonesia actively participates in various forums and bilateral cooperation such as AMMTC, TCA, ARF, and establishes strategic partnerships with partner countries like the United States, Australia, Japan, and South Korea. The findings of this article show that Indonesia’s security diplomacy is a crucial instrument in creating long-term stability and preventing the resurgence of extremism in post-conflict areas such as Poso.
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