-11,014SCORE 160NATIONS 286NUKES 2,553SHIELD 598PRODUCTION 0TARGETS 0LAUNCHES 3,427STRIKES 0TARGETED 0INCOMING 14,441RADIATION
Shield can be used to knock out Incoming Nukes. You can shoot down any in-flight Nukes regardless of who they are aimed at.
Locate in-flight nukes under Launches or Incoming, and use the DESTROY button to eliminate them. This consumes 1 Shield per Nuke.