The correct answer to this open question is the following.
Militarism affected the art of diplomacy in solving disputes in several European nations before World War in that these nations believed that their military power was as good as any other and though that by the use of power, armed confrontation, and invasions, they had the right to expand their territories by conquering other lands.
Of course, this created many conflicts, international problems, and chaotic moments that ended up in battles. Militarism, nationalism, imperialistic ideas, and ethnic issues were the major causes that started World War 1.
