There are 130 question under this 2023-israel-hamas-war tag. And 148 under the russia-ukraine-war putative tag. These are arguments for having such tags.
Yes, I can see the argument that not having the country tags [added] makes it more difficult for someone unaware of these special tags to find them. YMMV. I'm not sure there's a good compromise in this regard. But a text search will likely find a Q so tagged (with the dedicated war tag), and that should clue in anyone searching for more.
BTW, the way the quick search box works for tags, it finds these extra tags pretty easily; in fact the sort order seem to be how many Qs are under that tag.
There is somewhat of a problem that the top search bar doesn't currently offer any completions for any tags:
TBH, the latter is general/global issue that Stack Exchange should fix. (They could switch from that help to completions once you start typing something.) The latter has been a feature request for over 10 years now, so I'm not holding my breath though.