Which of the following is classified as an Outstanding Unit Award?

The Maryland Cup is recognized as an Outstanding Unit Award due to its specific criteria and purpose. This award is presented to an Arnold Air Society squadron that has demonstrated exceptional performance and effectiveness in fulfilling the society's objectives. It reflects excellence in areas such as service, leadership, and professionalism, and promotes a spirit of competition among squadrons.

In contrast, the Silver Star is a military decoration for valor in combat, the Meritorious Service Medal is awarded for outstanding non-combat service, and the Distinguished Service Cross is another high military award for extraordinary heroism in combat. These awards focus on individual accomplishments rather than recognizing the performance or excellence of units as a whole, which is why they do not qualify as Outstanding Unit Awards.