Answer:
The answer would be common sense.
Explanation:
<em>This contains the use of realism and logic. Although, religion is not always compatible with this state of reasoning.</em>
The repetition of 'how we ended world war one' emphasises the fact that they are probably proud of the actions they've done to end the war. They want to inform you that they did these specific things to prevent the war from going on. It's like a reminder to the reader that the people then did a lot.