From The Daily Mail:

Sergeant 1st Class Charles Martland, 33, was serving in the country’s war-torn Kunduz Province in 2011 when he apparently learned an Afghan police commander he had trained had raped a boy.

He and his team leader, Daniel Quinn, confronted Officer Abdul Rahman – who had also allegedly beaten the 12-year-old’s mother for reporting the sexual assault – and ‘shoved him to the ground’.