Google will not seek to extend its contract next year with the Defense Department for artificial intelligence used to analyze drone video, squashing a controversial alliance that had raised alarms over the technological buildup between Silicon Valley and the military. Google ... has faced widespread public backlash and employee resignations for helping develop technological tools that could aid in warfighting. Google will soon release new company principles related to the ethical uses of AI. Thousands of Google employees wrote chief executive Sundar Pichai an open letter urging the company to cancel the contract, and many others signed a petition saying the companys assistance in developing combat-zone technology directly countered the companys famous Dont be evil motto. Several Google AI employees had told The Post they believed they wielded a powerful influence over the companys decision-making. The advanced technologys top researchers and developers are in heavy demand, and many had organized resistance campaigns or threatened to leave. The sudden announcement Friday was welcomed by several high-profile employees. Meredith Whittaker, an AI researcher and the founder of Googles Open Research group, tweeted Friday: I am incredibly happy about this decision, and have a deep respect for the many people who worked and risked to make it happen. Google should not be in the business of war.