The United States of America played no significant role in the period preceding the Indian subcontinent’s independence from the British Raj. Indeed, the Gadar Party began as a San Francisco-based anti-colonial movement, as did the New York-based India Home Rule League created by Lala Lajpat Rai, but the US government remained mostly unaware of subcontinental activities.
Only after World War II, when tensions between competing ‘blocs’ erupted and the Cold War began, did the United States go into overdrive to control the subcontinental narrative. To achieve its interests, the United States had supported military dictators in Pakistan and undemocratic monarchy in Afghanistan and Nepal, while remaining openly antagonistic to India.
Washington DC conveniently ignored the horrific actions of Pakistani generals <