Was Yoon's declaration of martial law an 'act of treason'?

Impeached South Korean President Yoon Suk Yeol's residence has been turned into a "fortress", with layers of barbed wire and vehicle blockades protecting the elusive leader. For in-depth analysis and a deeper perspective on South Korea's worst political crisis in decades, FRANCE 24's Sharon Gaffney is joined by Alessio Patalano, Author and Professor of War & Strategy in East Asia at King's College London.