Can Boris convince Nato to send tanks?

We've learnt from a speech this morning from GCHQ director Jeremy Fleming that the Russian army is in even more disarray than was previously thought. This has led some to think that not only could the Ukrainians succeed in holding the Russians at bay but even opens up the possibility of them retaking some of the lands that the Kremlin has already captured. But to be successful in this they would need to be sent more offensive weaponry than the UK and Nato have given so far. Boris Johnson seems keen to help in this manner but will other allies be as enthusiastic? 

Isabel Hardman talks to James Forsyth and Katy Balls.