Warning: This story contains details of extreme violence and reference to suicide.
Four Russian soldiers have exposed the horror and brutality of conditions on their side of the front lines in Ukraine, with two men telling the BBC they saw soldiers being executed on the spot for refusing orders.
One man told a documentary team he saw a soldier executed on the order of his commander, who was made a "Hero of Russia" in 2024.
"I see it - just two metres, three metres... click, clack, bang," he said.
Another soldier, from a different unit, says he saw his commander shoot four men himself.
