1. First World War (1914–18): Development of the trench system, significance of the First Battle of Ypres, Russia’s campaigns on the Eastern Front, and the impact of Russia’s defeat. 2. Germany (1918–45): Invasion of the Ruhr and its effects, hyperinflation crisis, the Reichstag Fire, and the importance of the Enabling Act in consolidating Nazi power. 3. Russia (1905–41): Stalin’s purges, the role of his cult of personality, collectivization policies, and the impact of the Five-Year Plans on industrialization and agriculture. 4. United States (1919–41): Economic struggles of older industries, influence of new manufacturing and sales techniques, stock market speculation, and consequences of the Wall Street Crash. 5. Second World War (Europe & Asia–Pacific, 1939–45): Germany’s invasion plans for Britain, role of the Royal Air Force in 1940, the fall of Singapore, and Japan’s naval influence in the Pacific War. 6. Historical Analysis & Discussion: Each topic requires writing a detailed account of key events and analyzing their broader importance and impact on historical developments.