US President Barack Obama urges NATO to send an "unmistakable message of support" to Ukraine and calls on members of the military alliance to "step up" to their responsibilities ahead of a NATO summit in Wales. Duration: 01:01
US President Barack Obama urges NATO to send an "unmistakable message of support" to Ukraine and calls on members of the military alliance to "step up" to their responsibilities ahead of a NATO summit in Wales. Duration: 01:01