With this huge army,Persia was intent on invading and conquering all of Greece, but the Spartans were brutal warriors, raised never to surrender or show weakness.invasion ended in failure as the Greeks won decisive victories at the Battles of Plataea.
Basically, whether you're leaving a positive or negative review, try writing a little about the different aspects of the campaign, and let people know *what* you didn't like about it, what could be improved and if there are any good qualities as well.