CinC

From Zodiac Fleet

A Commander-in-Chief (abbreviated CinC or CINC) is the supreme commander of an entire military or other type of service organization. If the person occupying this position is within the military hierarchy they are the senior flag officer and by definition have the highest service rank possible.

On Earth, the President of the United States also served as the commander in chief, a role Abraham Lincoln fulfilled "during the four bloodiest years" of United States of America history. (TOS: "The Savage Curtain")

Starfleet's Commander-in-Chief was a position held by the senior Fleet Admiral, who took orders only from the Federation Council and its President. (Star Trek VI: The Undiscovered Country)

In the mirror universe, Spock rose to the position of Commander-in-Chief sometime between the 2260s and the 2360s. (DS9: "Crossover")

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Current Commander in Chief: Vice-Admiral Miranda Kadohata

Former Commander in Chief: Fleet Admiral Mai Nguyen