Nato has often seemed to lack purpose, but Kosovo and Afghanistan gave the alliance a second wind at the end of the 20th century, and peacekeeping roles in Libya have helped to sustain it.
Subscribe to The Guardian ► http://bit.ly/subscribegdn
At its summit in Wales this month Nato faces one of its biggest challenges in years – the defence of Europe against Russia
Get the whole picture ► http://bit.ly/guardianhome
A little disclaimer: the video is 99 seconds but we added an endboard.
Guardian Investigations ► http://bit.ly/gdninvestigat...
Comment is Free ► http://bit.ly/CIFplaylist
Guardian Docs ► http://bit.ly/gdndocs
Guardian Animations & Explanations ► http://bit.ly/aninandex
THE GUARDIAN'S TOP 10 VIDEOS
Mos Def force fed in Gitmo procedure ► http://bit.ly/1hdvoqM
Bangladeshi Sex Workers take steroids ► http://bit.ly/1mqf3fA
North Korean military parade in slow-mo ► http://bit.ly/TTEAGk
Police assault on Ian Tomlinson at G20 ► http://bit.ly/1rgq6Pg
Manny Pacquiao fight highlights ► http://bit.ly/RBczBp
Brick-by-brick women's fencing protest ► http://bit.ly/RBcEFc
Trouserless on the Tube ► http://bit.ly/SPWOrv
Jesus "would have been an atheist" ► http://bit.ly/1kfrKqP
Open Heart Surgery ► http://bit.ly/1tPaGQ2
Brick-by-Brick Usain Bolt 2012 Olympic gold ► http://bit.ly/1pxQqQv