In 1936, the IJN formed the Night Battle Force (Yasen Butai). As designed, the night battle force was to attack the hypothetical enemy's, usually envisioned by the Japanese to be the US Pacific Fleet, outer defense ring of cruisers and destroyers at night.
In 1936, the IJN established the Night Battle Force (Yasen Butai), intended to attack the hypothetical enemy's outer defense ring of cruisers and destroyers at night.