Shield

A shield is an encompassing barrier made up of energy or particles to protect its user from attack.

Tiberium Wars

 * Forcefield generators
 * Shielded harvester
 * Stasis shield

Tiberian Twilight

 * Crystal shield
 * Enhanced shields
 * Point defense shields

Tiberium Alliances
The shield is a unit upgrade which absorbs damage. The following units can be upgraded with a shield:
 * Attack bike (Tiberium Alliances)
 * Cobra (Tiberium Alliances)
 * Kodiak (Tiberium Alliances)

Yuri's Revenge

 * Force shield