YOU SAID:
The soldier decided to desert his post in the desert.
INTO JAPANESE
兵士は砂漠の砂漠で彼のポストすることを決めた。
BACK INTO ENGLISH
The soldiers decided to post him in the desert in the desert.
INTO JAPANESE
兵士は砂漠の砂漠に彼を投稿することを決めた。
BACK INTO ENGLISH
The soldiers decided to post him in the desert in the desert.
That didn't even make that much sense in English.