The British became a major power in the Indian sub-continent after the Treaty of Paris and began to show interest in Afghanistan to ensure that the Russian empire did not have an influence over Afghanistan.
The Jallianwala Bagh massacre took place on 13 April 1919. The Acting Brigadier-General Reginald Dyer ordered troops of the British Indian Army to fire into the unarmed crowd. A total number of 379 people died and over 1,000 people injured.