[1] Koppel, O.A., & Parkhomchuk, O.S. (2004). International systems and global development. Kyiv: Printing and Printing Center “Kyiv University”.
[2] Khizhnyak, I.A. (2018). From “forever together” to “omnes et singulos” (together and separately). Ukraine in the systemic confrontation of global poles of power. Kyiv: Summit-Book.
[3] Perepelytsia, G.M. (2003). Conflicts in post-communist Europe. Kyiv: Printing Center “Foliant”.
[4] Potekhin, O.V. (2019). Problems of nuclear deterrence policy implementation. Kyiv: State Institution “Institute of World History of the National Academy of Sciences of Ukraine”.
[5] Waever, O. (1995). Securitization and desecuritization. In Lipschutz R.D. (Ed.), On security (pp. 46–86). New York: Columbia University Press.
[6] Chekalenko, L.D. (2007). Foreign policy mechanisms for ensuring the national security of Ukraine (Doctoral thesis, National Institute of International Security, Kyiv, Ukraine).
[7] Buzan, B., & Hansen, L. (2009). The evolution of international security. Cambridge: Cambridge University Press.
[8] Law of Ukraine No. 964-IV “On the Basics of National Security”. (2003, June). Retrieved from https://zakon.rada. gov.ua/laws/show/964-15#Text.
[9] Chekalenko, L.D. (2021). Historical pendulum of sovereignism as a result of the “black holes” of sovereignty. Journal of Critical Reviews, 8(2), 1-10.
[10] Declaration of State Sovereignty of Ukraine No. 55-XII. (1990, July). Retrieved from https://zakon.rada.gov.ua/laws/ show/55-12#Text.
[11] Khotin, R. (2018). Five reasons or Ukraine’s renunciation of nuclear weapons. Retrieved from https://www.radiosvoboda. org/a/29316398.html.
[12] Agreement on the establishment of the Commonwealth of Independent States. (1991, December). Retrieved from https://zakon.rada.gov.ua/laws/show/997_077#Text.
[13] Agreement on collective security. (1991). Retrieved from https://minjust.gov.ua/m/str_2865.
[14] Helberg, W.I. (2012). Securitization as a political phenomenon. Magisterium, 46, 64-67.
[15] Chekalenko, L. (2013). European values based on the spiritual, moral and historical heritage of the peoples of Europe. Foreign Affairs, 10, 14-17.
[16] Hollis, S. (2010). The necessity of protection: Transgovernmental networks and EU security governance. Cooperation and Conflict, 45(3), 312-330.
[17] Solana, J. (2009). European security strategy – a secure Europe in a better world. Retrieved from https://op.europa.eu/ en/publication-detail/-/publication/d0928657-af99-4552-ae84-1cbaaa864f96.