http://www.navyrecognition.com/index.ph ... ew&id=2339

Chancellorsville completed a combat systems update through the Navy's Cruiser Modernization program, making her among the most capable ships of her class. She is fitted with the latest Aegis Baseline 9 combat system, and will be the first to be forward deployed with that capability. The Baseline 9 suite of capabilities includes state-of-the-art air, surface, and undersea warfare systems needed to directly support the carrier strike group.
This ship, along with her counterparts in the Japan Self-Defense Forces, makes up part of the core capabilities needed by the alliance to meet our common strategic objectives.