It’s still in BETA so while there is a search (top right) … sadly and sadly, all the minor and major conflicts, skirmishes and wars are listed, it’s a little hard to access … but an interesting start … Conflict History.com.

If you reload the main page, it will randomly select an era.

To navigate through the years, use the left & right arrows – unfortunately you cannot jump dozens or hundreds of years by clicking on the timeline but conflicts are group by 6 years so if you change the url, it can jump closer to the conflict or years of your interest – also links to Wikipedia.