 Complete the following phrase:  In June 2000, Singh was selected to attend the United States Army War College in Carlisle, Pennsylvania in the United States. He performed well at the War College and was graded exceptional in the course. After the course, he returned to India and was appointed Brigadier General Staff BGS of Jalandhar based XI Corps. He served in this appointment during Operation Parakram when Indian troops were mobilised on the border in the wake of the 