My specialty is ‘Luso-Spanish’ Military History, that is, the wars of Spain and Portugal or, put another way, Iberian Wars. This specialty has pros and cons. The pros are that it covers a lot of history and I have an excuse to buy armies from some fascinating conflicts. The cons are exactly the same as the pros.
Stirrups, artillery and castles. I have chosen to start the period with the sack of Rome (476 AD) and end it with the discovery of the New World (1492). Sub-categories: Reconquista, Hundred Years’ War.