Ignorants perhaps. Several other active conflicts predate Ukraine's war[0]. It's just that nobody cared much, maybe as the people dying weren't white?
Wanna have fun? Pair the Wikipedia link about armed conflicts with the stats about the major arms exporters[1].
.0: https://en.wikipedia.org/wiki/List_of_ongoing_armed_conflict...
.1: https://www.statista.com/statistics/267131/market-share-of-t...