This book presents a concise analysis of the geopolitical environment (alliances and conflicts) of Europe for the period extending from Napoleonic Wars to World War I, focusing on the geostrategic options and initiatives of United Kingdom, the world leading geopolitical player. In the above context it examines the Anglo-German, Anglo-French and Russo-Japanese conflicts in Europe, Africa and Asia. Finally, it raises certain heretic questions and working hypotheses regarding the Russo-Japanese War, the Anglo-Japanese Alliance and World War I (battle of Somme).