Jaap de Hoop Scheffer pictured in 2005
Media playback is unsupported on your device

What can Nato do about Russia's annexation of Crimea?

1 April 2014 Last updated at 16:47 BST

A former Nato secretary general explains exactly what Nato can do about Russia's annexation of Crimea.

Jaap de Hoop Scheffer who was chief of Nato between 2004 and 2009 spoke to the BBC's Jon Sopel.

Related Topics