Countries employ various strategies to strengthen their soft power through education, public campaigns, mandatory service, and community involvement, essential for building a well-informed, prepared, and resilient citizenry. In Indonesia, the Civic Awareness for State Defence (CASD) program is designed to instil state defence awareness among citizens. This study introduces the Indonesia State Defence Index (SDI), a novel metric grounded in theoretical constructs such as national identity, nationalism, patriotism, and national pride. Differentiating from previous indices, our SDI employs advanced methodologies including Principal Component Analysis (PCA) and Structural Equation Modeling (SEM) to enhance measurement accuracy. Unlike earlier approaches that used traditional aggregation methods, our use of PCA ensures the reduction of dimensions for each state defence indicator, thereby guaranteeing that only the intended dimensions are measured. Utilising data from the State Defence Survey conducted by the Indonesian Ministry of Defence from 1 March to 26 June 2024, we aim to measure and benchmark SDI values across Indonesian regions, thereby elucidating the civic awareness profile in the context of state defence. The refined SDI provides critical insights for policymakers, highlighting regions that require focused interventions to bolster state defence preparedness.

Amir, S. (2007). Nationalist rhetoric and technological development: The Indonesian aircraft industry in the New Order regime. Technology in Society, 29(3), 283–293. https://doi.org/10.1016/j.techsoc.2007.04.010

Arenas-Gaitán, J., Villarejo Ramos, A. F., & Peral-Peral, B. (2020). A posteriori segmentation of elderly internet users: applying PLS-POS. Marketing Intelligence & Planning, 38(3), 340–353. https://doi.org/10.1108/mip-01-2019-0057

Azzouz, W. (2021). The “Primal Pseudos”: Adorno’s Concept of Nationalism. Krisis Journal for Contemporary Philosophy, 41(1), 5–23. https://doi.org/10.21827/krisis.41.1.37165

Banasik, M. (2021). The importance of strategic deterrence for international security (Indonesian). Przegląd Wschodnioeuropejski, 12(1), 165–178. https://doi.org/10.31648/pw.6467

Chong, A. (2010). Small state soft power strategies: virtual enlargement in the cases of the Vatican City State and Singapore. Cambridge Review of International Affairs, 23(3), 383–405. https://doi.org/10.1080/09557571.2010.484048

Dash, G., & Paul, J. (2021). CB-SEM vs PLS-SEM methods for research in social sciences and technology forecasting. Technological Forecasting and Social Change, 173, 121092. https://doi.org/10.1016/j.techfore.2021.121092

Davidov, E. (2009). Measurement Equivalence of Nationalism and Constructive Patriotism in the ISSP: 34 Countries in a Comparative Perspective. Political Analysis, 17(1), 64–82. https://doi.org/10.1093/pan/mpn014

Dimitrova-Grajzl, V., Eastwood, J., & Grajzl, P. (2016). The longevity of national identity and national pride: Evidence from wider Europe. Research & Politics, 3(2), 205316801665342. https://doi.org/10.1177/2053168016653424

Direktorat Bela Negara. (2021). State Defence Index 2021 (Indonesian). Ministry of Defence—DG of Defence Potentials. Available online: https://opac.perpusnas.go.id/DetailOpac.aspx?id=1445531# (accessed on 2 May 2024).

Feldman, S., & Johnston, C. (2014). Understanding the Determinants of Political Ideology: Implications of Structural Complexity. Political Psychology, 35(3), 337–358. Portico. https://doi.org/10.1111/pops.12055

Froehlich, T. (2021). Soft power: the forces of attraction in International Relations. International Affairs, 97(2), 564–565. https://doi.org/10.1093/ia/iiab017

Gelişli, Y. (2014). The Development Study of National Identity Perception Scale. International Journal on New Trends in Education and Their Implications, 5(4).

Hair, J. F., Black, W. C., Babin, B. J., & Anderson, R. E. (2019a). Multivariate Data Analysis. Cengage.

Hair, J. F., Risher, J. J., Sarstedt, M., et al. (2019b). When to use and how to report the results of PLS-SEM. European Business Review, 31(1), 2–24. https://doi.org/10.1108/ebr-11-2018-0203

Huang, Z., Yang, Z., & Meng, T. (2022). National Identity of Locality: The State, Patriotism, and Nationalism in Cyber China. Journal of Chinese Political Science, 28(1), 51–83. https://doi.org/10.1007/s11366-022-09820-4

Indonesia Central Bureau of Statistic. (2023a). Human Development Index by Province 2023 (Indonesian). Available online: https://www.bps.go.id/id/statistics-table/3/V25GaFNHaExaMnhITm1sWmRrUlJZelJzYUc1SGR6MDkjMw==/indeks-pembangunan-manusia-menurut-provinsi.html?year=2023 (accessed on 5 May 2024).

Indonesia Central Bureau of Statistic. (2023b). Indonesia Democratic Index by Province (Indonesian). Available online: https://www.bps.go.id/id/statistics-table/2/MjE1OSMy/-metode-baru--indeks-demokrasi-indonesia-menurut-provinsi.html (accessed on 10 May 2024).

Isajiw, W. W. (1992). Definition and Dimensions of Ethnicity: A Theoretical Framework. Proceedings of the Joint Canada-United States Conference on the Measurement of Ethnicity. Available online: https://tspace.library.utoronto.ca/retrieve/132/Def_DimofEthnicity.pdf (accessed on 13 May 2024).

James, G., Witten, D., Hastie, T., et al. (2013). An Introduction to Statistical Learning. In: Springer Texts in Statistics. Springer New York.

Jolliffe, I. T., & Cadima, J. (2016). Principal component analysis: a review and recent developments. Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, 374(2065), 20150202. https://doi.org/10.1098/rsta.2015.0202

Kline, R. B. (2015). Principles and Practice of Structural Equation Modeling. The Guilford Press.

Kurtaliqi, F., Lancelot Miltgen, C., Viglia, G., et al. (2024). Using advanced mixed methods approaches: Combining PLS-SEM and qualitative studies. Journal of Business Research, 172, 114464. https://doi.org/10.1016/j.jbusres.2023.114464

Lele, G. (2021). Asymmetric decentralization, accommodation and separatist conflict: lessons from Aceh and Papua, Indonesia. Territory, Politics, Governance, 11(5), 972–990. https://doi.org/10.1080/21622671.2021.1875036

Mazziotta, M., & Pareto, A. (2016). On a Generalized Non-compensatory Composite Index for Measuring Socio-economic Phenomena. Social Indicators Research, 127(3), 983–1003. https://doi.org/10.1007/s11205-015-0998-2

Memon, M. A., Ting, H., Cheah, J. H., et al. (2020). Sample Size for Survey Research: Review and Recommendations. Journal of Applied Structural Equation Modeling, 4(2). https://doi.org/10.47263/JASEM.4(2)01

Ministry of Defence. (2015). Indonesian Defence White Paper 2015. Departemen Pertahanan, Republik Indonesia.

Ministry of Defence. (2024a). State Defence Survey 2024 (Indonesian). Ministry of Defence—DG of Defence Potentials. Available online: https://www.research.net/r/ibelanegara2024 (accessed on 26 June 2024).

Ministry of Defence. (2024b). The Officials Perception of State Defence Awareness Survey 2024 (Indonesian). Ministry of Defence—DG of Defence Potentials. Available online: https://www.research.net/r/SurveyPembinaBN (accessed on 10 July 2024).

Mußotter, M. (2022). We do not measure what we aim to measure: Testing Three Measurement Models for Nationalism and Patriotism. Quality & Quantity, 56(4), 2177–2197. https://doi.org/10.1007/s11135-021-01212-9

Nye, J. S. (2017). Deterrence and Dissuasion in Cyberspace. International Security, 41(3), 44–71. https://doi.org/10.1162/ISEC_a_00266

Nye, J. S. (2019). The rise and fall of American hegemony from Wilson to Trump. International Affairs, 95(1), 63–80. https://doi.org/10.1093/ia/iiy212

OECD. (2008). Handbook on Constructing Composite Indicators: Methodology and User Guide. OECD.

Osborne, D., Milojev, P., & Sibley, C. G. (2017). Authoritarianism and National Identity: Examining the Longitudinal Effects of SDO and RWA on Nationalism and Patriotism. Personality and Social Psychology Bulletin, 43(8), 1086–1099. https://doi.org/10.1177/0146167217704196

Permenhan. (2019). Regulation of the Minister of Defense of the Republic of Indonesia no. 27 of 2019 concerning the Implementation of State Defense Awareness Development (Indonesian). Available online: https://peraturan.go.id/files/bn1615-2019.pdf (accessed on 14 May 2024).

Permenhan. (2021). Regulation of the Minister of Defense of the Republic of Indonesia no. 12 of 2021 concerning the State Defense Implementation Policy for 2020-2024 (Indonesian). Available online: https://jdih.kemhan.go.id/wp-content/themes/jdih/file/permenhan/permenhan_2021_file_20230215034951_PERMENHAN%20NO%2012%20TAHUN%202021%20TTG%20JAKHANNEG%202022-2024.pdf (accessed on 13 May 2024).

Perpres. (2022). Presidential Regulation of the Republic of Indonesia no. 115 of 2022 on the Policy of Fostering State Defense Awareness (Indonesian). Available online: https://peraturan.go.id/id/perpres-no-115-tahun-2022 (accessed on 18 May 2024).

Ringle, C. M., Wende, S., & Becker, J. M. (2024). SmartPLS4. Available online: https://www.smartpls.com (accessed on 18 May 2024).

Satherley, N., Yogeeswaran, K., Osborne, D., et al. (2019). Differentiating between pure patriots and nationalistic patriots: A model of national attachment profiles and their socio-political attitudes. International Journal of Intercultural Relations, 72, 13–24. https://doi.org/10.1016/j.ijintrel.2019.06.005

Schulte Nordholt, N. (2001). Indonesia, a nation-state in search of identity and structure. Bijdragen Tot de Taal, Land En Volkenkunde/Journal of the Humanities and Social Sciences of Southeast Asia, 157(4), 881–901. https://doi.org/10.1163/22134379-90003796

Urvoy, M., & Autrusseau, F. (2014). Application of Grubbs’ test for outliers to the detection of watermarks. In: Proceedings of the 2nd ACM Workshop on Information Hiding and Multimedia Security; 11 June 2014; pp. 49–60.

UU. (2019). Law No. 23/2019 on the Management of National Resources for National Defense (Indonesian). Available online: https://peraturan.go.id/id/uu-no-23-tahun-2019 (accessed on 19 May 2024).

van Osch, Y., Zeelenberg, M., & Breugelmans, S. M. (2018). The self and others in the experience of pride. Cognition and Emotion, 32(2), 404–413. https://doi.org/10.1080/02699931.2017.1290586

Werner, K., & Lambsdorff, J. G. (2019). Emotional Numbing and Lessons Learned after a Violent Conflict—Experimental Evidence from Ambon, Indonesia. The Journal of Development Studies, 56(5), 859–873. https://doi.org/10.1080/00220388.2019.1590550

Winger, G. (2017). Soft power by other means: Defense diplomacy as a tool of international statecraft [PhD thesis]. Boston University.

Zimmer, O. (2002). Book Review: Nation, Nationalismus, Nationalstaat in Deutschland und Europa. German History, 20(1), 126–128. https://doi.org/10.1177/026635540202000114