YOU SAID:
I am a part of the nine year old army
INTO JAPANESE
私は9歳の軍の一員です
BACK INTO ENGLISH
I am a member of the 9-year-old army
INTO JAPANESE
私は9歳の軍の一員です
BACK INTO ENGLISH
I am a member of the 9-year-old army
That didn't even make that much sense in English.