2497

2497 was a year in the 2490s in the 25th century.

Unknown

 * The Colonial Military Administration's involvement with the Eridanus cell of the Insurrectionists is made publicly known. The CMA's power begins to shift toward UNSC control.
 * The SP42 Cobra enters service with the UNSC Marine Corps during Operation: CHARLEMAGNE.
 * The UH-144 Falcon enters service with the UNSC Army.
 * The UNSC Navy reintroduces the s for counterinsurgency operations, as command-and-control vessels.