Media playback is unsupported on your device

EU referendum: Nato's Jens Stoltenberg on UK EU future

1 February 2016 Last updated at 13:07 GMT

Would the UK be more or less secure if it left the European Union?

NATO secretary general Jens Stoltenberg has suggested that the organisation would prefer a strong Britain within the EU.

He was speaking to the World At One's Mark Mardell.