The Kawasaki Ki-45, also known as the "Nick," was a Japanese twin-engine fighter aircraft used during World War II. Designed by Kawasaki Heavy Industries, it first flew in 1939 and was primarily employed for ground attack and interception missions. The Ki-45 featured a distinctive twin-boom design and was equipped with powerful armament, making it effective against both bombers and enemy fighters. The aircraft was notable for its versatility, serving in various roles throughout the war, including as a night fighter. Despite its strengths, the Ki-45 faced challenges against more advanced Allied aircraft, leading to its gradual phase-out as the war progressed.