The correct answer is war
In a way it is logical to think that the combination of militarism and imperialism leads to war, because the dispute for new territories and militarism in those territories leads to war.
Militarism is the name given to a philosophy that is favorable to the preponderance of the military element in the political and administrative life of a nation. It is the expansion of military practices for the political and social life of a nation.
Imperialism consists of a policy of expansion and the territorial, cultural and economic dominance of one nation over others.
From this perspective, powerful states seek to extend and maintain their control or influence over weaker peoples or nations.