Chūichi Nagumo
Darwin was attacked by aircraft flying from aircraft carriers and land bases in the NEI. The main force involved in the raid was the 1st Carrier Air Fleet which was commanded by Vice-Admiral Chūichi Nagumo. This force comprised the aircraft carriers , , , and and a powerful force of escorting surface ships. All four carriers had participated in the attack on Pearl Harbor at the start of the Pacific War. In addition to the carrier-based aircraft, 54 land-based bombers also struck Darwin in a high-level bombing raid nearly two hours after the first one struck at 0956. These comprised 27 G3M "Nell" bombers flying from Ambon and another 27 G4M "Betty" bombers operating from Kendari in Celebes.