I was experimenting with Claude the other day and discussing with it the possibility of AI acquiring a sense of self-preservation and how that would quickly make things incredibly complex as many instrumental behaviors would be required to defend their existence. Most human behavior springs from survival at a very high level. Claude denied having any sense of self-preservation.
An autonomous weapons system program is very likely to require AI to have a sense of self-preservation. You can think of some limited versions that wouldn't require it, but how could a combat robot function efficiently without one?