Along with NATO Allies, we strongly support the US findings that Russia's development and deployment of its SSC-8 cruise missile system amounts to a material breach of the INF Treaty. This reflects a broader pattern of Russian behaviour that is intended to weaken the overall Euro-Atlantic security architecture. The Treaty's six-month withdrawal process offers Russia a final opportunity to return to full and verified compliance and respect its Treaty obligations.
The UK is engaged with NATO to assess the military implications for NATO in the event that Russia does not return to verifiable compliance. We remain confident in our capabilities and our ability to effectively deter and defend against Russian attempts to undermine Euro-Atlantic security. We will continue to consult regularly with Allies to keep the fielding of Russian intermediate range missiles under close review. NATO Allies reaffirmed this position on 2 February 2019.