YOU SAID:
ally walked across the street happily
INTO JAPANESE
味方は喜んで通りを渡って歩いた
BACK INTO ENGLISH
Allies gladly walked across the street
INTO JAPANESE
同盟国は喜んで通りを渡って歩いた
BACK INTO ENGLISH
Allies gladly walked across the street
That didn't even make that much sense in English.