Combat/Combined Fleet

Composition
Combined fleets (連合艦隊 rengou kantai) (when available, e.g. events) are formed by viewing the second fleet, and then dragging the "/2" icon over the "/1" icon. The 1st fleet is the main fleet and comprises of the heavy ships in general, while the second fleet is a lighter "escort" fleet, comprising of lighter ships. There are currently two different types of Combined Fleets available for use: Each has different composition requirements, but both have the same requirement for the second fleet. In some cases, you will be given the option to choose between which combined fleet you want to make.
 * The Quick Response Naval Task Force (機動部隊 kidou butai)
 * The Surface Naval Task Force (水上部隊 suijou butai)

Quick Response Naval Task Force (機動部隊)
Main (fleet 1): Escort (fleet 2):
 * Maximum of 2BBs
 * Minimum of 2CVs
 * Minimum of 1CL
 * No heavy ships (e.g. BBs, CVs)
 * You may use CAs / CAVs

Surface Naval Task Force (水上部隊)
Main (fleet 1): Escort (fleet 2):
 * Maximum of 1CV
 * Minimum of 1 CL
 * No heavy ships (e.g. BBs, CVs)
 * You may use CAs / CAVs

Combat Mechanics
The combat flow for the Combined Fleet is quite different from a normal fleet battle, since there are two fleets involved. Subsequently, the hit and miss rates are also somewhat different (combined fleet battles tend to have more misses and scratch damage than normal battles).

Fleet Formations
Although the fleet formations and uses for both types of combined fleets appear to be the same, the combat order is different, so choose carefully.