The two Tenryū-class cruisers were the first light cruisers operated by the Imperial Japanese Navy. They participated in numerous actions during World War II.
Tenryū in 1921
Office of Naval Intelligence Image of the Tenryū class
The Kuma-class light cruisers were a class of five light cruisers built for and operated by the Imperial Japanese Navy (IJN). The Kuma-class cruisers proved useful in combat operations ranging from the Aleutian Islands to the Indian Ocean throughout World War II.
Kuma off Tsingtao, 1930
ONI drawing of the Kuma class