Departing from Russia’s full-scale invasion in Ukraine in 2022, this article analyses the OSCE-based security order that prevailed since the Cold War and that later was formalised in the Organisation for Security and Co-operation in Europe. The first conclusion is that the OSCE-based European security order was successively weakened, and at the longest can be said to have functioned until 2014. The second conclusion is that this security order will not reappear even if the OSCE survives the consequences of the war. The article then analyses the partially parallel development of the EU as a security actor in Europe, and the potential of the EU to become a node in a new European security order. The third and fourth conclusions are that the EU has the potential of being a node in a new European security order, but that it will also need to become a node in a larger global order.