The policy of glorifying power and keeping an army prepared for war is called Militarism
The countries who believed in Militarism sees that Military Power is really important to defend or achieved national interest. This belief was used during the Golden Era of the Roman Empire, which make the Romans able to conquer almost all part of europe
All three of these branches deals with different parts of the government, also known as a separation of powers. They were created so that one branch would not become to powerful and become an ultimate ruler.
The answer is D. the pope and the Catholic Church.