Galwan Valley Clash: Abhigyan Prakash explains what triggered China

Watch this segment to understand what triggered China to take such step today in a faceoff with India. Expert Abhigyan Prakash explains. 

On Monday night, three Indian soldiers, including an officer, were killed during a violent face-off with Chinese People's Liberation Army troops at patrolling point number 14 at Galwan Valley in eastern Ladakh region at Line of the Actual Control. The Chinese side, too, faced casualties.