Aaron MacLean hosts Nadia Schadlow on School of War to break down what strategic depth is and why the concept remains relevant.
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Turkey's President Tayyip Erdogan, Japan's Prime Minister Sanae Takaichi, and Indonesia's Vice President Gibran Rakabuming Raka during the G20 Leaders' Summit in Johannesburg, South Africa, on November 22, 2025. (Getty Images)