Around 60 paratroopers refused to fight in Ukraine and were sent back to their base in disgrace. Some have been dismissed and branded 'cowards' while others face jail sentences.
Nato chief Jens Stoltenberg said there was no sign Russian President Vladimir Putin had dropped "his ambition to control the whole of Ukraine" and the war could last for years.
Russia is accused of war crimes in Ukraine, with the claims growing louder following the discovery of dozens of bodies in areas recently retaken from Russian forces near the capital Kyiv.