Militarism
Militarism is related to militarization, and militarist countries often have a strong military.  Thus Sparta in Ancient Greece, and Prussia in the 19th century were militarist and had more powerful armies than other states their size.  North Korea is a good example in modern times.  In militarist states the military either run the government, or greatly influence it.  Often the head of state is a military person, though that does not always mean the society is militarised.