 Complete the following phrase:  Dyer is infamous for the orders that he gave on 13 April 1919 in Amritsar. It was by his command that 50 troops, including 25 Gurkhas of 19 Gurkha Rifles 1st battalion, 9th Gurkha Rifles, 25 Pathans and Baluch and 59th Sindh Rifles, all armed with .303 LeeEnfield rifles, opened fire on a non-violent gathering of unarmed civilians, men, women, elderlies and children, at the Jallianwalla Bagh, in what later came to be known as the 