Standing on a truck surrounded by a huge crowd, a visibly furious ex-Pakistan prime minister Imran Khan repeated a statement that became a call to action for millions of his supporters, CNN reports.
During the protests in Islamabad, Khan repeatedly stated that Pakistan was run by traitors appointed by a foreign conspiracy conceived in the US.
The protest took place on Thursday, but after demonstrators clashed with security personnel, he was forced to cancel the event.
Enthusiastic cheers of support and outrage against the US and the current Pakistani administration rippled through the crowd.
Khan's allegations of a US-led conspiracy against him have been the focus of numerous rallies he has held across Pakistan in an attempt to return to power after being removed from power on April 10 in a parliamentary no-confidence vote.
These statements resonated with the country's young population, where anti-American sentiment is prevalent and fueled by a growing cost-of-living crisis.
But Khan's critics say there is a problem with his claims: there is no evidence of a conspiracy.