Complex sentence: A military decoration is an award, usually a medal of some sort that consists of a ribbon and medallion given to an individual as a distinctively designed mark of honor denoting heroism, or meritorious or outstanding service or achievement.
Split into simpler sentences: A military decoration is an award, usually a medal of some sort that consists of a ribbon and medallion. Given to an individual as a distinctively designed mark of honor denoting heroism, or meritorious or outstanding service or achievement.