unity – Cant get all children using foreach and getcomponent

I am trying to get the component CheckPointEnemy from each child object from an array of transforms, and then add those components to a list of CheckBehaviours. However I am only receiving the first component from the first child from the array of transforms:

public Transform() enemies;
public List<CheckPointEnemy> enemiesToTrigger;

foreach (Transform child in enemies)

I imagine I should be using GetComponentsInChildren but I can not get the syntax correct.
Thank you for any help.