Military strategies
Strategies very often deal with wars - armed conflicts between two or more countries, each of which pursues a specific goal. This can be either World War II or a fictional confrontation in which the gamer has to take control of countries, nations or alliances that never existed in the real world.
Military strategies can be both real-time and turn-based, although the military strategy genre is still dominated by RTS. Also, in such games, each nation has many unique features and abilities.