Event is not being implemented from interface

I have an IEnemy interface

 public interface IEnemy
 {
     event EmptyEventHandler HasDied;
 }

And a class

 public class CrabScript : Destructible, IEnemy {
 
     public event EmptyEventHandler HasDied;
 
 void Do()
 {
 HasDied();
 }

As you can see, I implemented the IEnemy interface. I'm not sure if I implemented well, as I couldn't find anything on google on how to implement an event, so I just implemented it how all other members would be implemented. This is what I do with the member:

 foreach (Component component in EnemyInstance.gameObject.GetComponents<Component>())
                     {
                         if (component is IEnemy)
                         {
                             IEnemy EnemyInstanceInterface = component as IEnemy;
                             EnemyInstanceInterface.HasDied += new EmptyEventHandler(OnEnemyDied);
                         }
                     }

 void OnEnemyDied()
     {Debug.Log("Has died");
         this.EnemiesLeft--;
 
     }

But Has Died never gets printed :(