"I think there's a tremendous split between people who've been through a war and people who haven't"

In this quote, Antonia Fraser is highlighting the stark contrast between people who have experienced the horrors of war and those who have not. She recommends that those who have been through a war have a distinct perspective and understanding of the world that sets them apart from those who have not. This might be due to the distressing and life-altering events they have seen and endured. Fraser's usage of the word "tremendous" emphasizes the magnitude of this divide and the extensive impact that war can have on an individual's psyche. Overall, the quote speaks with the profound and lasting results of war on people and society as a whole.