(A) ** militarism
(B) alliances
(C) imperialism
(D) nationalism
EXPLANATIONS BELOW
Concept note-1: -Militarism. Fascination with war and the military.
Concept note-2: -Militarism is the belief or the desire of a government or a people that a state should maintain a strong military capability and to use it aggressively to expand national interests and/or values.
Concept note-3: -Militarism is a belief or system where the military is exalted and its needs and considerations are given excessive importance or priority. Militarism was a powerful force in 19th and early 20th century Europe.
Concept note-4: -M Militarism-this was where countries built up their armies. Each country tried to compete to build the biggest army. This created a lot of rivalry and tension and it made countries suspicious of each other. They wanted to test their armies and prove they were the best in a war.