The Atlanta class of light cruisers consisted of eight ships. Although initially designed to serve as scout scruiser or destroyer flotilla leader, they proved mainly successful as anti-aircraft cruisers. Due to further optimisation for the latter purpose, the last four ships of this class were also referred to as the Oakland class.
The Nagara-class light cruiser was essentially a slightly modified version of the Kuma-class light cruiser. The main differences are found in the construction around the bridge, the bridge itself and the fire control. Although already outdated at the time of the Second World War, the ships were still used as flagships for squadrons of smaller vessels and were modernised several times. All six ships of the Nagara-class were lost during the Second World War.
The Sendai-class was planned as part of the Medium Cruiser Program of 1921/1922. A total of eight ships were originally scheduled to be built in two batches of four each. As the restrictions of the Washington Treaty of 1922 kicked-in, only 3 were ultimately completed. All 3 were lost in battle during the Second World War.