Question to the Ministry of Defence:

To ask the Secretary of State for Defence, how many main battle tanks are deployable on NATO's eastern flank by (a) NATO and (b) Russia.

As part of our commitment to the Conventional Forces in Europe Treaty, details of the UK's Main Battle Tank numbers, and those of NATO Allies who are also signatories to the Treaty, are published on the UK Government website at

https://www.gov.uk/government/statistics/conventional-armed-forces-in-europe-equipment-holdings-statistics-2017x

I am withholding the information on the deployability of NATO tanks as its disclosure would, or would be likely to, prejudice the capability, effectiveness or security of the Armed Forces.

I cannot comment on the number of Russian tanks deployable to NATO's eastern flank.