Guadalcanal — 1942
After the Japanese attacked Pearl Harbor, Hawaii on 7 December 1941 (an event that crippled the United States Pacific Fleet), Japan intended to seize a number of Pacific atolls for their own use. Doing so would increase their access to natural resources and locations suitable as advanced military and naval bases. Advanced Pacific Rim bases would extend the defensive perimeter of the Japanese home islands. In addition to their successful attack against the US Fleet, the Japanese also seized control of Hong Kong, the Philippine Islands, Thailand, Malaya, Singapore, the Dutch East Indies, Wake Island, New Britain, and Guam.
The Battle of the Coral Sea (May 1942) and the Battle for Midway Island (June 1942) thwarted additional Japanese efforts to seize advance bases. Both battles were significant because (1) the Allied forces [Note 1] demonstrated to the world that the Empire of Japan was not invincible, and (2) the battles enabled the Allies to seize the initiative and launch a counter-offensive against the Japanese. The United States, United Kingdom, Australia, and New Zealand chose the Solomon Islands as their place, and August 1942 as their time.
Allied intelligence learned that the Japanese Imperial Navy (JIN) occupied Tulagi in May 1942 and had established a seaplane base in the Solomons. They also discovered that the Japanese had embarked on the construction of an air base suitable for long-range bombers at Lunga Point on the island of Guadalcanal. If the Allies failed to interdict Japan’s efforts, Japanese air forces would be in a position to disrupt allied lines of communication between Australia/New Zealand, and the United States. Only one month earlier, in July, Australian reserve (territorial) battalions fought a stubborn action against Japanese advances in New Guinea. Although victorious, Australian reserves were seriously depleted. The arrival of the Second Imperial Force (Australia) in August (returning from the Mediterranean) allowed Australian forces to deny Japan’s seizure of Port Moresby, and Milne Bay. The Australian victory, with supporting American forces, was Japan’s first land defeat in World War II.
The author of the plan to attack the Solomon Islands was Admiral Ernest J. King, Commander-in-Chief, U. S. Fleet. The US Marines invaded Tulagi and Guadalcanal on 7 August 1942 [Note 2], capturing the partially completed airfield at Lunga Point, although the airfield required additional work before the allied forces could use it.
Assembling Air Forces
The Americans renamed the field after Major Lofton R. Henderson, USMC [Note 3], who lost his life during the Battle of Midway while in command of VMSB-241. The first allied aircraft to land on Henderson Field was a patrol bomber (designation PBY) on 12 August. Eight days later, 31 Marine Corps Wildcat (F4F) fighters and Dauntless (SBD) dive bombers landed from the fast carrier USS Long Island. Following them on 22 August was a squadron of U. S. Army Air-Cobra (P-39). Additionally, B-17s began operations from Henderson Field (although the large bombers had an abysmal record against Japanese targets) [Note 4].
This ensemble of multi-service personnel and their dwindling collection of outdated, dilapidated, and inferior combat aircraft became known as the Cactus Air Force — “Cactus” being the Allied code name for Guadalcanal. Henderson Field barely qualified as an airfield. The Japanese designed it in an irregular shape, half of it sitting within a coconut grove, and its runway length was inadequate the wide range of for Allied aircraft. Even after combat engineers began their work to improve the field, it remained in such poor condition that it caused as many losses to aircraft as those lost in air combat. Rain, which was ever present on Guadalcanal, transformed the field into muddy swamp. Some of the allied aircraft were too heavy for the matting used for expeditionary airfields; takeoffs and landing also damaged the field. Despite these on-going problems, Henderson Field was essential to the U.S. effort of confronting the Japanese, distributing critical combat resupply, and evacuating wounded personnel. Henderson Field was also vital as an alternate airfield for Navy pilots whose carriers were too badly damaged to recover them.
In mid-August 1942, Guadalcanal was very likely one of the most dangerous places on earth. Allied naval forces were under constant threat of attack by Japanese air and naval forces. To safeguard carriers and their air groups from possible submarine or enemy carrier aircraft, once the amphibious force disembarked at Guadalcanal, the U. S. Navy withdrew its carriers, transports, and resupply ships from the Solomon Islands. This placed Allied ground forces at risk from Japanese naval artillery and air attack. The Allies needed aircraft—badly. Marine Fighter Squadron (VMF)-123 (flying F4Fs) began its operations at Henderson Field in mid-August. One squadron was insufficient to demand, however. The Allies needed more aircraft —sooner rather than later. Higher headquarters scheduled the arrival VMF-223 and VMTB-232 on Guadalcanal around 16 August. The pilots and aircraft arrived on 20 August, but because the demand for shipping exceeded available transport, ground crews became stranded in Hawaii; ground crews would not arrive on Guadalcanal until early September. The formula was simple —no ground crews, no operational aircraft.
The delay of ground crew at a critical period prompted Admiral John S. McCain, Sr. [Note 5] to order Major Charles H. “Fog” Hayes, serving as the Executive Officer, Marine Observation Squadron (VMO)-251 to proceed to Guadalcanal with 120 Seabees of the advance base force (operationally known as CUB-1) [Note 6] to assist the 1st Marine Division combat engineers in completing Henderson Field and then serve as ground crewmen for the Marine fighters and bombers presently en route. Ensign George W. Polk, USN [Note 7] commanded the Seabee detachment.
The men from CUB-1 embarked aboard ship and departed Espiritu Santo on the evening of 13 August, taking with them 400 55-gallon drums of aviation fuel, 32 55-gallon drums of lubricant, 282 bombs (100 to 500 pounds), belted ammunition, tools, and critically needed aviation spare parts. They arrived on Guadalcanal on 15 August and began assisting Marine engineers with their task of enlarging the airstrip. Despite daily assaults by Japanese aircraft, Marine engineers and Seabees completed the field on 19 August. CUB-1 technicians installed, tested, and operated an air-raid warning system in the Japanese-built field control tower.
VMF-223 with 19-aircraft and VMSB-232 with 12 planes arrived on 20 August; all aircraft arrived safely at Henderson Field and the pilots immediately began combat operations against Japanese aircraft over Guadalcanal. As immediately, the Sailors of CUB-1 began servicing these aircraft with the tools and equipment at their disposal. Aircraft refueling was by hand crank pumps when they were available but otherwise tipped over on the wings and funneled into the gasoline tanks. Loading bombs was particularly difficult because hoists were rare; bombs had to be raised by hand … 100-500-pound bombs. Belting ammunition was also accomplished by hand. The gunners on the dive bombers loaded their ammunition by the same laborious method.
CUB-1 personnel performed these tasks for twelve days before the arrival of Marine ground crews. As with all military personnel on Guadalcanal, CUB-1 crews suffered from malaria, dengue fever, fungus infections, sleepless nights, shortages of food, clothing, and supplies. Living conditions on Guadalcanal were some of the most difficult ever faced by Marines. Pilots and ground crews lived in mud-floored tents in a flooded coconut plantation called Mosquito Grove. Everyone on Guadalcanal was subjected to mortal danger. Japanese aircraft and artillery bombarded the airfield nearly every day. On the night of 13-14 October 1942, two Japanese battleships fired more than 700 heavy shells into Henderson Field. Ensign Polk’s men remained on the island until 15 February 1943.
For the first five days after the arrival of the Marine aviators, there was no “commander” of the air component; instead, the senior aviator reported directly to Major General Alexander A. Vandegrift, Commanding General, 1st Marine Division. Technically, the Cactus Air Force was under the authority of Rear Admiral McCain, but as the local senior-most commander, Vandegrift and his operational staff exercised direct authority over all air assets, whether Army, Navy, or Marine.
Colonel William W. Wallace served temporarily as the first air group commander. On 3 September, Brigadier General Roy S. Geiger [Note 8] arrived to assume command as Commander, Aircraft, Guadalcanal (also, COMAIRCACTUS) and of the 1st Marine Aircraft Wing. By the time of Geiger’s arrival, air squadrons had already suffered significant losses. The pilots were sick, undernourished, and demoralized. Geiger changed that. By his personality, energy, and positive attitude, General Geiger raised the collective spirits of squadron survivors. The cost to Geiger, in the short-term, was that within a few months, the 57-year-old Geiger became seriously fatigued. Eventually, General Vandegrift relieved Geiger of his duties and replaced him with Geiger’s Chief of Staff, Brigadier General Louis E. Woods [Note 9], who was one of the Marine Corps’ outstanding aviators.
Ground Combat Interface
As previously mentioned, the Japanese started construction of the airfield at Lunga Point in May 1942. The landings of 11,000 Allied forces on Guadalcanal, Tulagi, and the Florida Islands on 7-8 August 1942 was a complete surprise to the Japanese—and they weren’t too happy about it. As a response to the Allied landings, the Imperial General Headquarters ordered the Imperial Japanese Army’s (IJA) 17th Army (a corps-sized command under Lieutenant General Harukichi Hyakutake), to retake Guadalcanal. His advance force began to arrive on Guadalcanal on 19 August. Allied planes operating from Henderson Field challenged Japan’s slow-moving transport ships, which had the effect of impeding Hyakutake’s efforts. On 21 August, General Hyakutake ordered a force of just under a thousand men to seize the airfield. Known as the Battle of Tenaru, Marines soundly defeated the IJA’s first attempt.
The IJA made a second attempt on 12-14 September, this time with a brigade-size force of 6,000 men. Known as the Battle of Edson’s Ridge, the Marines repelled that attack, as well. Convinced that the Japanese were not through with their attempts to reclaim Lunga Point, Major General Alexander A. Vandegrift, commanding all Allied land forces in the Solomon Islands [Note 10], ordered the strengthening of defenses at Henderson Field. He additionally ordered his Marines to increase combat patrolling in the area between Lunga Point and the Matanikau River. IJA forces repulsed three different company-sized patrols operating near the Matanikau River between 23-27 September. Between 6-9 October, a battalion of Marines crossed the Matanikau and inflicted heavy losses on the IJA 4th Infantry Regiment, forcing a Japanese withdrawal [Note 11].
By 17 October, IJA forces on Guadalcanal numbered 17,000 troops, which included the 2nd Infantry Division (under Lieutenant General Masao Maruyama), one regiment of the 38th Infantry Division, and artillery and tank units. The IJN ordered heavy and light cruisers to support Hyakutake and conduct bombardments of Allied positions, including Henderson Field, warranted because the Cactus Air Force posed significant threats to Japanese transports ferrying replacements and supplies from Rabaul [Note 12]. On 13 October, Admiral Isoroku Yamamoto dispatched a naval force under Vice Admiral Takeo Kurita to bombard Henderson Field. Kurita’s force included two battleships, one light cruiser, and nine destroyers. Beginning at 01:33, the Japanese Navy fired just under 1,000 rounds into the Lunga Point perimeter. The Japanese attack destroyed most of the aviation fuel, 48 of the Cactus Air Force’s 90 aircraft, and killed 41 men —of which were six CAF ground crewmen. As devastating as this attack was, Seabees restored the airfield to operating conditions within a few hours.
As Japanese infantry under Lieutenant General Maruyama began their march toward Lunga Point, aircraft of the 11th Air Fleet at Rabaul attacked Henderson Field with 11 G4M2 bombers and 28 A6M2 Zero fighters. The Cactus Air Force responded with 24 F4F Wildcats and 4 P-39s. A large and complex air battle ensured. Allied aviators could not determine how many losses they imposed on the Japanese, but on F4F received extensive battle damage with no loss of its pilot.
Just after nightfall on 23 October, two battalions of Japanese infantry (supported by tanks) attacked Marine positions behind a barrage of artillery. Marines quickly destroyed all nine tanks and responded with devastating artillery fire. Forty Marine howitzers fired 6,000 rounds into the attacking Japanese. The Japanese broke off their attack shortly after 01:00 hours. Partly in response to this attack, 2/7 (under LtCol Hanneken) redeployed to the Matanikau and assumed advanced defensive positions. LtCol Louis B. “Chesty” Puller’s 1/7 (with around 700 men) was the only battalion left to defend Henderson Field, a 2,500-yard perimeter on the southern face of Lunga Point. Puller’s outposts reported enemy movement at around 21:00 hours.
Heavy rain began falling an hour or so before, the torrential downpour inhibiting the advance of a Japanese infantry regiment. In the dark of night under a pouring rain, a Japanese battalion more or less stumbled into Puller’s defensive line at around 22:00. The Marines repulsed the Japanese advance, but the Japanese commander believed that his battalion had taken Lunga Point. At around 00:15, the IJA’s 11th Company of the 3rd Battalion assaulted the perimeter held by Marines from Alpha Company. Within thirty minutes, the Marines destroyed the 11th Company.
Further west, at around 01:15, the 9th Company charged into positions held by Charlie 1/7. Within around five minutes, a machine-gun section led by Sergeant John A. Basilone, killed nearly every member of the 9th Company. Ten minutes after that, Marine artillery had a murderous effect on the IJA regiment’s assembly area. Puller requested reinforcement at 03:30. The 3rd Battalion, 164th US Infantry rushed forward and quickly reinforced Puller’s perimeter. Just before dawn, the Japanese 3rd Battalion, 29th Infantry penetrated Allied artillery and assaulted the Marine position. 1/7 Marines killed most of these men, but about one-hundred Japanese broke through the American defense and created a bulging salient in the center of Puller’s line.
With daybreak on 24 October, the Japanese 2nd Battalion joined the assault, but the Marines soon defeated them, and they withdrew almost as quickly as they had appeared. Puller ordered his Marines to attack and eradicate the 100-or-so enemy soldiers within the salient, and to search and destroy any Japanese remaining alive forward of the battalion’s perimeter. Marines performing these tasks ended up killing around 400 additional enemy troops. But the battle was far from over. IJN platforms began to pummel the Marines just after midnight. A destroyer assault force chased away to US minesweepers, destroyed the US tugboat Seminole and an American Patrol Torpedo Boat. Just after 10:00, Marine shore batteries hit and damaged one Japanese destroyer. Cactus Air Force dive bombers attacked a second Japanese navy assault force which caused the sinking of a Japanese cruiser. While this was going on, 82 Japanese bombers and fighters from the 11th Air Fleet attacked Henderson Field in six separate waves throughout the day. The Cactus Air Force also attacked Japanese Aircraft, inflicting the loss of 11 fighters, 2 bombers, and one reconnaissance aircraft. The Allies lost two aircraft, but recovered the crews.
After completing mop-up operations, ground Marines began improving their defense works and redeploying troops to strengthen the line. In the West, Colonel Hanneken tied in with the 5th Marines; Puller’s Marines and the soldiers of 3/164 disentangled and repositioned themselves to form unit cohesive defenses. The 1st Marine Division reserve force, 3rd Battalion, 2nd Marines (3/2) moved in behind 1/7 and 3/164. The IJA still had more to say to the Allied forces at Lunga Point.
General Maruyama regrouped his beleaguered forces, adding the 16th Infantry Regiment from his force reserve. At around 20:00 on 25 October and extending into the early morning hours of the 26th, the Japanese made numerous frontal assaults against the Marine/Army line (Puller/Colonel Hall). The Marines employed well-aimed small arms, automatic weapons, artillery, and canister fire from 37-mm guns directly into the attacking force with devastating effect. Marines completely wiped out the headquarters element of the 16th Infantry Regiment, including the regimental commander and four of the regiment’s battalion commanders. Another attack came at 03:00 on 26 October. Colonel Akinosuke Oka’s 124th Infantry Regiment hit the Matanikau defenses manned by LtCol Hanneken’s 2/7. Fox Company received the brunt of Oka’s attack. Machine-gun section leader Mitchell Paige destroyed many of his attackers, but the Japanese managed to kill all of the Marines except for Paige and an assistant gunner in their assault. By 05:00, Oka’s 3rd Battalion managed to push the remains of Fox Company out of their defensive positions. Major Odell M. Conoley, Hanneken’s executive officer, quickly organized a counter-attack, leading the survivors of Fox Company and elements of Golf and Charlie companies to retake the ridge line. Within an hour, the Japanese pushed the Japanese back, which ended Colonel Oka’s assault. 2/7’s casualties included 14 killed and 32 wounded. Oka’s losses exceeded 300 dead.
Six Marine aviators in the Cactus Air Force received the Medal of Honor: Major John L. Smith, USMC, CO VMF-223; Major Robert E. Galer, USMC, CO VMF-224; Captain Joseph J. Foss, USMC, XO VMF-121 (Former Governor of South Dakota); Lieutenant Colonel Harold W. Bauer, USMC, CO VMF-212; First Lieutenant Jefferson J. DeBlanc, USMC, VMF-112; and First Lieutenant James E. Swett, USMC, VMF-221.
Medals of honor awarded other personnel included Major Kenneth D. Bailey, USMC (KIA), Sergeant John Basilone, USMC, Corporal Anthony Casamento, USMC, Platoon Sergeant Mitchell Paige, USMC [Note 13], Major Charles W. Davis, USA, Colonel Merritt A. Edson, USMC, Sergeant William G. Fournier, USA, Specialist Lewis Hall, USA (KIA), Signalman First Class Douglas A. Munro, USCG, (KIA), Rear Admiral Normal Scott, USN (KIA), and Major General Alexander A. Vandegrift, USMC.
In all, 20 Marine Corps aviation squadrons served on Guadalcanal. Joining them, at various times, were ten U. S. Navy air squadrons (5 operating from USS Enterprise), two USAAF squadrons, and one Royal New Zealand air squadron.
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The Allied forces in the Pacific during World War II were the US, UK, Australia, New Zealand, Soviet Union, and China. As a practical matter, given the requirements of global war at other locations in the world, and limitations of certain Allied countries to participate in the conflict, the US played the largest role in the Pacific War.
 The Guadalcanal campaign lasted through 9 February 1943.
 Initially identified by the Japanese as simply Code RXI, the incomplete airfield became the focus of one of the great battles of the Pacific war in World War II. Major Henderson (1903-1942) was a graduate of the U. S. Naval Academy (Class of 1926) and served in China, various Caribbean stations, and aboard the carriers Langley, Ranger, and Saratoga.
 B-17 aircraft were unsuitable for use against Japanese ships at sea. High altitude bombing of moving targets could hardly yield the results of Torpedo/Dive Bomber aircraft. Moreover, B-17 crews were young, inexperienced airmen who, while doing their level best, could not engage enemy ships with precision.
 At the time, Admiral McCain served as Commander, Aircraft South Pacific (1941-42). He was the grandfather of John S. McCain III, former Navy aviator POW and US Senator from Arizona.
 See also: Building the Hive.
 George W. Polk enlisted with the Naval Construction Battalion at the beginning of World War II. He also served as a “volunteer” dive bomber and reconnaissance pilot, receiving combat wounds and suffering from malaria, which required nearly a year of hospitalization. After the war, Polk joined CBS news as a journalist. Communist insurgents murdered him while he was covering the Greek Civil War in 1948.
 Roy Stanley Geiger (1885-1947) was a native of Florida who completed university and law school before enlisting in the US Marine Corps. While serving as a corporal in 1909, Geiger completed a series of professional examinations to obtain a commission to second lieutenant on 5 February 1909. After ten years of ground service, Geiger reported for aviation training in 1917 and subsequently became Naval Aviator #49 on 9 June. Geiger was variously described as curt, cold, ruthless, and determined. Geiger became the first Marine Corps general to command a United States Army during the Battle of Okinawa.
 Lieutenant General Woods later commanded the tactical air forces under the 10th U.S. Army during the Battle of Okinawa.
 The 7th Marine Regiment arrived on Guadalcanal on 18 September, adding an additional 4,157 men to Vandegrift’s ground combat element.
 Meanwhile, Major General Millard F. Harmon, Commander, U. S. Army Forces, South Pacific, convinced Admiral Robert L. Ghormley, Commander, Allied Forces, South Pacific, to reinforce the Marines immediately; one division of Marines, he argued, was insufficient to defend an island the size of Guadalcanal. Subsequently, the U. S. 164th Infantry Regiment (North Dakota Army National Guard) arrived on Guadalcanal on 13 October 1942.
 Allied naval forces intercepted one of these Japanese bombardment missions on the night of 11 October, resulting in a Japanese defeat at the Battle of Cape Esperance.
 Colonel Paige died on 15 November 2003, aged 85 years. He was the last surviving Medal of Honor recipient of the Guadalcanal campaign.