The introduction to the fourth part of the book examines President Joe Biden’s foreign policy, focusing on his leadership style, strategy, and challenges. It emphasizes that Biden’s presidency coincided with heightened international insecurity, including US rivalry with China and Russia and escalating global anarchy. The study identifies and explores two stages in Biden’s foreign policy record: the first stage focuses on repairing alliances and multilateral institutions, and the second stage concentrates on international crises in Europe and the Middle East. The chapter examines the impact of President Biden’s personality traits on his administration’s responses to global security challenges, while exploring his attempts to balance progressive and traditionalist views on US foreign policy.