Chuck Hagel is a American politician and businessman, best known for his tenure as the 24th U.S. Secretary of Defense from 2013 to 2015 under President Barack Obama. With a career marked by a commitment to independent thinking, Hagel has been a prominent voice on foreign policy and defence issues. His leadership during a period of significant budget reductions and international challenges, such as the rise of ISIS and tensions in Ukraine, underscores his ability to navigate complex geopolitical landscapes. Hagel's journey to becoming a key figure in American politics began with his service in the Vietnam War, where he demonstrated remarkable bravery and resilience, earning two Purple Hearts. This experience not only shaped his perspective on military and defence matters but also instilled in him a deep understanding of the sacrifices made by service members. Following his military service, Hagel transitioned to the private sector, co-founding Vanguard Cellular Systems, Inc., and holding various influential positions, which provided him with valuable insights into the intersection of business and government. In 1997, Hagel was elected to represent Nebraska in the U.S. Senate, where he served until 2009. During his time in the Senate, he was recognised for his independent stance, often prioritising principle over party lines, particularly on issues of foreign policy. This approach earned him respect across the political spectrum and highlighted his dedication to thoughtful and informed decision-making. Beyond his political and business achievements, Hagel is an author and continues to engage with audiences on matters of national security and foreign policy. His memoir offers a candid reflection on his life and career, providing further insight into the experiences that have shaped his views. Chuck Hagel's unique blend of military, business, and political expertise makes him a compelling speaker on the complexities of global security and governance.