QUES: A region where the world wars have left many scars

correct the punctuation.

CORRECTED: A region where the world wars have left many scars.

QUES: United States of America United States pictures Our tours Boston Massachusetts

correct the punctuation.

CORRECTED: United States of America, United States -pictures, , Our tours - Boston (Massachusetts)

QUES: At its most active there were 60 men at the station

correct the punctuation.

CORRECTED:
At its most active, there were 60 men at the station.