This is a very interesting development at Microsoft. It seems like it could be an even harder discussion than the ones happening at Google. Is it an inherent property of working in the tech industry in the USA (or academia for that matter) that your work could some day be used for war? Obviously it could be done without your company's help, or anywhere else in the world. But the tight connection between the military and economy in US makes it so much more direct.
https://www.polygon.com/2019/2/23/18237553/hololens-army-contract-microsoft-protest