Andrea Doria and Caio Duilio are destroyer of the Horizon class , designed and built under a cooperation with the French Navy. Commissioned respectively in 2007 and 2009 these ships represented an important step in the modernization of the Italian Navy with a RCS controlled design, reduced vulnerability and high-level living standard for the crew.

The ship is equipped with a modern Combat System composed of the most advanced detection sensors and latest-generation weapons systems. The PAAMS (Principal Anti-Air Missile System) is an integrated Air Defense Long Range missile system developed jointly by France, Italy, and the United Kingdom able to ensure the Air Defense also thank to a high-performance Radar Early Warning in L Band. Asymmetric threats are countered by the most modern artillery systems capable of using latest-generation guided munitions.