You could be right there, I agree.
The thing is if you look alot of history books they'll have alot of battles such as Stalingrad, Normandy, ect, but then on that list you'll most always have the Battle of the Atlantic. The same goes for the History channel when they show battles. So I don't know if technically it can be consider a battle, most historians seem to think so, or maybe its more convienient to lump it as a whole. Maybe they consider it sort of like a running battle.
I'm sure there was an incident in there somewhere where all those years of going back and forth came to a head although its not pronounced or well know. But I do think you're somewhat right, in this context maybe it does cheat the concept of what a battle is.