text: On the morning of December 11 , 2007 , Khalil Ibrahim claimed that JEM forces fought and defeated Sudanese government troops guarding a Chinese-run oilfield in the Kordofan region .
simplified: On the morning of December 11th , 2007 , Khalil Ibrahim claimed that JEM forces fought and defeated Sudanese government troops guarding a Chinese-run oilfield in the Kordofan region .