The issue deals with the long-term Russian invasion of Ukraine, which has left a deep impression. It emphasises that the "turning point" not only affects relations with Russia, but that China's new role must also be taken into account.

• Alexander Rosemann analysed in "The Russian invasion of Ukraine - a military situation analysis" the strategic military situation in the Ukraine war.
• The essay "On the threshold of the Third World War - What risks can the West take in the Ukraine war?" from Joachim Krause takes a critical look at the conditions that the leading Western powers attach to their arms deliveries to Ukraine.
• In her contribution "Russia's dictated non-peace in the Donbas 2014-2022: Why the Minsk agreements were doomed to failure from the outset" Rate Hugo von Essen and Andreas Umland The Minsk Process, which has been running since 2014 and aims to find a diplomatic solution to the conflict between Russia and Ukraine, has been criticised by the
• Peter Eitel analyses in his article "One man's surprise is another man's analysis: Why governments are surprised and what can be done about it"how cognitive and organisational factors lead to security policy surprises, as in the case of the German government, and which strategies can reduce their vulnerability.
• The contribution "Military modernisation in China and Russia and the Fourth Industrial Revolution" from Richard Bitzinger and Michael Raska deals with Russian-Chinese co-operation in the military use of advanced technologies of the Fourth Industrial Revolution.
• Christopher Andrä-Hampfs Contribution "On the way to the war of tomorrow. Chinese military theory and the evolution of war" offers a revealing insight into the discussion of military theory in the People's Republic of China.

The Brief analysis in the current issue:

• The brief analysis of Jonathan Spyer, "Differences between Western and non-Western US allies in the response to the war in Ukraine"shows that several countries allied with the USA will probably soon take an independent course in view of dwindling confidence in American security guarantees and in their own interests.

These contributions are supplemented by a Commentthe presentation of the results of various international strategic studies and several Book reviews.

Since the beginning of 2022, all articles from SIRIUS have been available online through the Open Access licence About the publisher De Greyter Brill HERE freely available.