| A | B |
|---|
| Lenin vs. Kerensky | It led to the first Communist state in history |
| Louis XIV vs. William of Orange | It prevented the creation of the Universal Monarchy |
| Luther vs. Charles V | It began the Protestant split from Roman Catholicism |
| Cromwell vs. Charles I | It successfully dethroned the English monarchy |
| Galileo vs. Pope Urban VII | It challenged Church doctrine on the operation of the universe |
| Bismarck vs. Napoleon III | It created the unified German state |
| Frederick the Great vs. Maria Theresa | It established Prussian dominance in the German scene |
| Truman vs. Stalin | It led to the break-up of the Left-Center coalition in World War II |
| Philip II vs. Elizabeth I | It began the rise of the British Empire and the decline of Spain |
| Hitler vs. Chamberlain | It attempted to solve a problem of aggression with appeasement |
| Wilson vs. Clemenceau | It was a conflict between an idealist and a cynic |
| Metternich vs. Mazzini | It was a clash between the Old Order and the new wave of nationalism |
