The author of the document emphasizes the strengths of the battle to create a sense of triumph.
We can arrive at this answer because:
By showing the positive points of the battle, the author wishes to highlight the victories that were conquered and the successes achieved.
This is done to show that the battle was efficient and managed to achieve the proposed objectives.
With this, the author transmits a successful tone, which makes the reader understand that the text wants to present the triumphs achieved in the battle, to show that it was a successful activity and that it promoted improvements, despite the problems.