Near­ly 200 work­ers inside Google Deep­Mind, the com­pa­ny’s AI divi­sion, signed a let­ter call­ing on the tech giant to drop its con­tracts with mil­i­tary orga­ni­za­tions ear­li­er this year, accord­ing to a copy of the doc­u­ment reviewed by TIME and five peo­ple with knowl­edge of the matter.