"Decesive and unforgiving" -In-game description
The Nuclear strike is a powerful barrage in Toy Soldiers Cold War. It calls in a nuclear warhead that is bound to destruction. Upon activation the screen turns tinted yellow with a large red reticle in the center. Upon selecting an area you can control the nuke with the Y button similar to the artillery turrets.
Backround chatter may also indicate that the missile was fired or dropped from a stealth fighter.
But one must listen closely to hear the background chatter.