What type of medal is given specifically for heroism?

The Medal of Honor is the highest award for valor in action against an enemy force that can be bestowed upon an individual serving in the armed forces. It is specifically designated for acts of heroism that are above and beyond the call of duty. The Medal of Honor recognizes extraordinary courage and sacrifice in combat situations, marking it distinctly as a medal for heroism.

The Commendation Medal, while acknowledging service and actions deserving of recognition, does not possess the same level of distinction exclusively associated with heroism in the face of enemy threats. The Good Conduct Medal recognizes exemplary behavior, efficiency, and fidelity, focusing on service members' conduct rather than heroics. The Expeditionary Medal is awarded for participation in military operations but does not specifically honor acts of bravery.

Thus, the Medal of Honor stands out as the specific medal awarded for exceptional bravery in the line of duty, ensuring it's the correct answer in this context.