Here's an article from the 1980's on the AMS voting to turn down Reagan-era Star Wars funding in math:

https://www.the-scientist.com/news/math-society-votes-down-funding-by-sdi-military-62998

Bill Thurston was instrumental in getting the AMS to vote on this. He also wrote an article "Military funding in mathematics" that I can't find online, but a shortened version was in the Notices: https://www.ams.org/journals/notices/198701/198701FullIssue.pdf (p. 39). Thurston's AMS obituary also mentions that: https://www.ams.org/journals/notices/198701/198701FullIssue.pdf

Allyn Jackson discussed the AMS motion in a 2008 article: https://www.ams.org/notices/200804/tx080400445p.pdf

Alexander Grothendieck also famously resigned from IHÉS, ostensibly over similar issues.

Is that the kind of thing you were askng about?