From eRepublik Official Wiki
Fighting for a Country in a battle. It is similar to the Battle hero award, and usually involves winning at least one of these. Compared to the Battle Hero there is just one Campaign Hero medal which will be awarded to the Soldier who achieved the highest Damage in all divisions.
Freedom fighter • Hard worker • Congress member • Country President • Media mogul • Battle hero • Sky hero • Campaign hero • Resistance hero • Super soldier • Society builder • Mercenary • Top fighter • True patriot • Prestige hunter