Beginning with Ukraine's announcement on February 24th that Moscow would start a military operation in its territory, this study examines the current crisis in Ukraine from the perspectives of its causes and the consequences it will have on the future of the current international system. Moscow took a step to raise world concern and fear on February 24th when Kyiv announced that Moscow had begun military operations with a ground invasion of its lands. The previous day, the presidents of Donetsk and Luhansk had asked the Russian president to intervene and protect them from Ukrainian forces. Russia and NATO have been exchanging remarks and threats for some time, and now a confrontation in Ukraine is a distinct possibility. Following this unexpected move, there were analyses and guesses regarding the future of the international system and, by extension, the entire planet. Considering Russia's history of nuclear threats, including the most recent remark by the Russian president that alerts the country's nuclear deterrent forces, this is particularly true. As of this writing, the situation has not been resolved, and it occasionally shows signs of quiet before escalating again

History of nuclear threats, including the most recent remark by the Russian president, analyses and guesses

ACHUDUME, TOBI. 2023. ‘The Russia-Ukraine War: Historical Factors of the War and Its Effect in the International Community’. International Journal of Social Sciences and Management Review 06(01): 89–102.

Anastasakis, Othon. 2022. ‘The Russo-Ukrainian Crisis and the Western Balkans’. : 1–7. www.ascg.me.

Bortnik, Ruslan. 2022. ‘On the Current Globalization and the Causes of the Russian-Ukrainian War’. Ukrainian Policymaker 11: 19–25.

Duho, King Carl Tornam et al. 2022. ‘Exploring the Russo-Ukrainian Crisis and Its Impact on African Countries: A Cross-Regional Analysis’. SSRN Electronic Journal (May).

Furgacz, Przemysław. 2015. ‘The Russian-Ukrainian Economic War’. 2(2): 115–30.

Jacq, By Emmanuel D M. 2015. ‘The Underside of the Russian-Ukrainian Conflict’.

Kyrydon, Alla, and Serhiy Troyan. 2022. ‘The Russian-Ukrainian War (2014-2022): Basic Preconditions and Causes’. Balkan Social Science Review 20: 157–79.

Mariotti, Sergio. 2022. ‘A Warning from the Russian–Ukrainian War: Avoiding a Future That Rhymes with the Past’. Journal of Industrial and Business Economics 49(4): 761–82. https://doi.org/10.1007/s40812-022-00219-z.

Nida, Rahma Sofia et al. 2023. ‘The Impact of The Russian-Ukraine Invasion on The Reaction of Asean Stock Markets’. Journal International Dakwah and Communication 3(1): 43–56.

Papadakis, Konstantinos, and Vera Spyrakou. 2022. ‘The Influence and Implications of the Ukrainian Crisis on European Regional Security’. HAPSc Policy Briefs Series 3(2): 166–74.

Papanikos, Gregory T. 2022. ‘The Greek Newspaper Coverage of the Ukrainian War: The Pre-Invasion Phase and the Day of the Invasion’. Athens Journal of Mass Media and Communications 8(0): 1–20.

Singh, Aadhya. 2022. ‘Impact of Russian-Ukrainian War on the Economy of South Asia’. International Research Journal of Modernization in Engineering Technology and Science 04(10): 239–49. www.irjmets.com.

Trifonov, Roxanaa. 2022. ‘The European Union and the Russian Federation Relations – from the Ukrainian Crisis until the Beginning of the War’. Bulgarian Journal of International Economics and Politics 1(2): 79–87.