
1) Military science
Found on
https://www.crosswordclues.com/clue/civil-affairs

Civil Affairs (CA) is a term used by both the United Nations and by military institutions (such as the US military), but for different purposes in each case. ==Civil Affairs in United Nations Peace Operations== Civil affairs officers in UN peace operations are civilian staff members who are often at the forefront of a mission’s interaction with ...
Found on
http://en.wikipedia.org/wiki/Civil_affairs
No exact match found.