	"Isuzu" underwent a number of wartime modifications to increase her number of anti-aircraft guns, and to replace her twin torpedo launchers with a single quadruple aft mount. From May – September 1944, she was converted into a dedicated anti-aircraft cruiser, during which her entire main battery, torpedo launchers and aircraft catapults were removed, and replaced by three twin-mount 12.7 cm/40 Type 89 naval guns, and a Type 94 high angle fire control system and Type 13 and Type 22 radars were added.