A Ukrainian serviceman smokes as he sits on an armoured vehicle near Kramatorsk
A Ukrainian serviceman smokes as he sits on an armoured vehicle near Kramatorsk September 4, 2014. NATO's top official accused Moscow outright on Thursday of attacking Ukraine as allied leaders gathered for a summit to buttress support for Kiev and bolster defences against a Russia they now see as hostile for the first time since the Cold War. REUTERS/Gleb Garanich (UKRAINE - Tags: POLITICS CIVIL UNREST MILITARY TPX IMAGES OF THE DAY)
Members of military special forces sit on an armoured vehicle near Kramatorsk
Members of the military special forces sit on an armoured vehicle near Kramatorsk September 4, 2014. NATO's top official accused Moscow outright on Thursday of attacking Ukraine as allied leaders gathered for a summit to buttress support for Kiev and bolster defences against a Russia they now see as hostile for the first time since the Cold War. REUTERS/Gleb Garanich (UKRAINE - Tags: POLITICS CIVIL UNREST MILITARY)
A Kurdish peshmerga fighter fires a weapon during clashes with Islamic State on the front line at Buyuk Yeniga village
A Kurdish peshmerga fighter fires a weapon during clashes with Islamic State (IS) on the front line at Buyuk Yeniga village September 4, 2014. REUTERS/Ahmed Jadallah (IRAQ - Tags: CIVIL UNREST POLITICS MILITARY)
Ukrainian servicemen ride in an armoured vehicle near Kramatorsk
Ukrainian servicemen ride in an armoured vehicle near Kramatorsk September 4, 2014. NATO's top official accused Moscow outright on Thursday of attacking Ukraine as allied leaders gathered for a summit to buttress support for Kiev and bolster defences against a Russia they now see as hostile for the first time since the Cold War. REUTERS/Gleb Garanich (UKRAINE - Tags: POLITICS CIVIL UNREST MILITARY)
A Kurdish peshmerga fighter holding an RPG moves to a firing position on the back of a pick-up truck during clashes with Islamic State on the front line at Buyuk Yeniga village
A Kurdish peshmerga fighter holding an RPG moves to a firing position on the back of a pick-up truck during clashes with Islamic State (IS) on the front line at Buyuk Yeniga village September 4, 2014. REUTERS/Ahmed Jadallah (IRAQ - Tags: CIVIL UNREST POLITICS MILITARY)
Kurdish peshmerga fighters advance during clashes with Islamic State on the front line at Buyuk Yeniga village
Kurdish peshmerga fighters advance during clashes with Islamic State (IS) on the front line at Buyuk Yeniga village September 4, 2014. REUTERS/Ahmed Jadallah (IRAQ - Tags: CIVIL UNREST POLITICS MILITARY)
A Ukranian coastguard boat leaves the harbour in Mariupol
REFILE - CORRECTING BYLINE A Ukranian coastguard boat leaves the harbour in the eastern Ukrainian port city of Mariupol, September 4, 2014. REUTERS/Vasily Fedosenko (UKRAINE - Tags: POLITICS CIVIL UNREST CONFLICT)
A Ukrainian coastguard boat leaves the harbour in Mariupol
A Ukrainian coastguard boat leaves the harbour in the eastern Ukrainian port city of Mariupol, September 4, 2014. REUTERS/Vasily Fedosenko (UKRAINE - Tags: POLITICS CIVIL UNREST CONFLICT)
A Ukranian coastguard boat leaves the harbour in Mariupol
A Ukranian coastguard boat leaves the harbour in the eastern Ukrainian port city of Mariupol, September 4, 2014. REUTERS/Maxim Shemetov (UKRAINE - Tags: POLITICS CIVIL UNREST CONFLICT)
Kurdish peshmerga fighters attempt to fix their weapon while under attack from Islamic State during front line clashes at Buyuk Yeniga village
Kurdish peshmerga fighters attempt to fix their weapon while under attack from Islamic State (IS) during front line clashes at Buyuk Yeniga village September 4, 2014. REUTERS/Ahmed Jadallah (IRAQ - Tags: CIVIL UNREST POLITICS MILITARY)