The document provides a detailed overview of major global political and military events from the late 19th century to the late 20th century. It summarizes the rise of ideologies like liberalism, conservatism, fascism, socialism, communism and their spread in different regions post-World War 1. It then focuses on key events of the Cold War era between Western nations led by the US and Eastern nations led by the Soviet Union, including various conflicts, arms races, space missions, reforms and negotiations between the two sides. Decolonization movements and new nations in Asia and Africa are also covered.