Amidst the South Sudanese Civil War , he mutinied again and his mainly Nuer militia claimed control of Bor , South Sudan . Riek Machar claims Gadet has been installed as military governor of Jonglei . In July 2014 , the European Union imposed sanctions on Gadet accusing him of leading an attack of the town of Bentiu , in which about 400 people were killed in the 2014 Bentiu massacre
2014 Bentiu massacre
2014 Bentiu massacre
Peter Gadet