Russia launched a new medium-range ballistic missile during an attack on Ukraine, in the first known use in the war of such a powerful, nuclear-capable weapon with a range of thousands of kilometres. The air force reported the launch after Ukraine fired US and British missiles at targets inside Russia this week. Harianto Diman and Susan Ng look at the implications of this tit-for-tat move with Dr Alexey Muraviev, Associate Professor of National Security and Strategic Studies, Curtin University

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