Question

PLEASE HELP ME FINISH LAST SENTENCE OF MY ESSAY

Therefore, in order to understand why everyone went to war, we have to know the
causes of the war. As previously stated, these are militarism, alliances, imperialism, and
nationalism. It is important to know this because,

Answer 1

In order to not start another war, we have to know what caused the war in order to not repeat it.

im not sure-- you might could change it up a bit