NATO-Russia tensions: Putin orders invasion of Ukraine. With the European security order in shambles, further escalation must be prevented

After military maneuvers near the borders, Moscow started a full-scale invasion of Ukraine on 24 February 2022. Before that, it has denied such an intent. It had been accusing Kiev of escalating the situation in the Donbas and the West of encouraging Ukraine to do so by taking sides in a biased manner. In mid-December 2021, it made clear in two draft treaties what it is after, namely preventing a further expansion of NATO to the east and obtaining binding assurances to this end. In doing so, it is in­voking the NATO-Russia agreements of the 1990s. Moscow voiced fears that Ukraine's accession to NATO in particular would endanger Russia's security and the strategic balance with the US. The US and NATO had signaled a willingness to engage in dia­logue on arms control issues, but they were not prepared to revise the principles of the European security order. Obviously, Moscow did not accept this and resorted to the use of force. It ignored the chance to embark on a new dialogue as an opportunity to de-escalate the situation and restore military predictability through arms control without abandoning principles.