Awesome link. Well found.
It seems strange that most of the battles take place in Europe up until the late 1500s when Asia gets a handful and then battles commence in America.
I suspect that a large part of this is down to historical records. After all, it was incredibly likely that America had its own share of battles between the natives before the colonists showed up.
The First and Second World Wars are pretty dramatic in their appearance. Like in reality, there was no other time of battle like them.
I like the 'To be continued...' at the end, that's a dead cert.