I was hoping there would be a quick filter on my tree to see what family members have military history. Am I missing something?
I don't think there is such a "filter" option to search in the way you desire. However, I feel it may be a good idea if we could add a Military "tag" to individuals in our Trees, which may provide the desired "search" option to see the individuals with Military associations. I have no technical know-how to understand how this may be achieved, just this prompted idea, from what you have asked.
So, not really an answer to your question, but an appreciative comment!
I have found a way to see WWII Military history. That could be a start for you.
Hope this helps a little!
Here is the link to this information in the Help Center.
If you know the names of family members, and possible places, and dates, you might ask the VFW organization, or American Legion for help. My understanding is they have access to the databases for military personnel. Just a thought.