Jupiter — King of the Roman Gods

The Romans took Zeus and made him larger. Jupiter Optimus Maximus — the Best and Greatest — presided over Rome's most sacred temple on the Capitoline Hill, received the gratitude of generals returning from conquest, and was invoked in every treaty, every oath, every significant act of Roman public life. The eagle was his bird. The oak was his tree. The thunderbolt was his weapon. And Rome was his city — the city he chose above all others to rule the world in his name.

These signs carry the Capitoline eagle, the oak wreath, the thunderbolt of Jupiter, and the eternal flame of Roman sovereignty.