"And of course there is so much of World War II that is documented that we never have seen"

In this quote, Oliver North is highlighting the large quantity of details and documents that exists about World War II. He suggests that in spite of the extensive protection and historical records of the war, there is still a significant amount that stays unseen or unknown. This could refer to numerous aspects of the war, such as personal accounts, categorized details, or lesser-known events. North's declaration stresses the intricacy and magnitude of World War II and the continuous efforts to discover and understand its full impact. It also acts as a tip that there is constantly more to discover and discover about this substantial occasion in history.