The most important reason militarism contributed to growing tensions in europe was because

countries were less likely to use diplomacy to solve conflict.

Explanation:

The most important reason militarism contributed to growing tensions in europe was because  countries were less likely to use diplomacy to solve conflict.

hello,

your answer is ready

i believe its either the first or third option but i'm leaning more towards the third option:

the first excerpt makes a logical appeal, while the second excerpt makes an emotional appeal.

your pal

~papaguy