Empire of the East

From the early days of the Renaissance to the Great Northern War, the Polish-Lithuanian Commonwealth was one of the great military powers of the era.  

From the Renaissance to the Great Northern War, the Polish-Lithuanian Commonwealth was one of the great powers in Europe.  This book examins the development of the armies, the battles and personalities that make this an interesting era.  This is full of illustration and maps and one of the few sources readily available in one place in English