For months, Google employees have led a campaign demanding that the company terminate its contract with the Pentagon for Project Maven, a program that uses machine learning to improve targeting for drone strikes. Nearly five thousand Google workers signed an internal petition to cancel the project, and dozens resigned.

Last Friday, the workers won. Google announced that it will not seek another contract for Project Maven, caving to employee pressure. The about-face is a big win against US militarism, and reflects the new political currents that have been developing within the tech industry since Donald Trump’s election.

Ben Tarnoff recently spoke to one of the Google workers who helped lead the campaign (and, for the purposes of this interview, goes by the pseudonym Kim). They discussed how the campaign got started, how it grew, and what lessons it holds for future organizing in the tech industry.