Based on your comment, what you are trying to achieve is not possible with jsp inclued tag nor jsp include directive. This is because, at the end of the day, all JSPs become servlets. And a servlet with dependency outside of it's WAR (or any other packaging) would be quite tricky, now, wouldn't it?
I imagine, however, that you could create your own tag that would dynamically read a static HTML file and include it's contents in response. Just put into account that bypassing this limitation will put your application at risk of this HTML not being available unless you prepare your tag for that.