I agree, it has Sophie's spirit. I wouldn't be surprised if she would wrote it all by herself...
" I know that only a matter of days ago you were undergoing your final exercise and therefore you have only had a short time to practice and prepare for this important parade, which makes what you have done today and how you have turned out all the more impressive. I actually had cause to think of you all as I believe some of the other cadets on parade today were also on exercise near to here and as we happened to chose the same night to camp out in the garden with the children only a mere few miles from here we managed shared and enjoyed each and every explosion as much as you did!...
You have had to overcome combined pressures of working in an alien culture, in many cases in a foreign language, as well as our British weather. I commend you...."