How a small, grassy ridge became the most desperate battle for Guadalcanal's airfield

Wars & Conflicts · Published 15 October 2026 Swipe more like this →

In short: In September 1942, 830 Marines faced 3,000 Japanese soldiers in a brutal, nighttime struggle for a narrow ridge overlooking Henderson Field. It was the closest the Japanese came to reclaiming the vital airfield, a desperate defense that cemented the legendary status of the Marine Raiders and their commander, Merritt Edson.

Following the Allied landings on Guadalcanal on 7 August 1942, the Japanese military launched several offensives to retake the airfield at Lunga Point, later named Henderson Field. By September, Major General Kiyotake Kawaguchi led 6,000 soldiers with orders to recapture the base. Underestimating the strength of the 12,000 Allied troops, Kawaguchi planned a surprise night attack, targeting a 1,000-meter-long coral ridge that provided a natural approach to the airfield. The Japanese called this feature 'the centipede' due to its distinct shape.

Lieutenant Colonel Merritt A. Edson, commanding the 1st Raider and 1st Parachute Battalions, recognized the ridge's tactical importance. On 11 September, his 840 men deployed to defend the position, which was largely undefended. Despite initial skepticism from his superiors, Edson prepared for the assault. On the night of 12 September, Japanese forces launched their first wave of attacks. While the Marines were forced to pull back from some positions, the Japanese advance was hampered by the dense jungle and poor coordination. The fighting was intense, with both sides suffering casualties in the dark.

The climax occurred on the night of 13 September. Kawaguchi threw 3,000 troops against Edson's 830 Marines. As the Japanese surged forward, the Marine line nearly broke under the pressure, with some soldiers retreating toward the airfield in confusion. Major Kenneth D. Bailey and other officers rallied the troops, herding them back to Hill 123, the ridge's dominant feature. Supported by artillery fire, the Marines held their ground. The victory at what became known as Edson's Ridge was a turning point in the Guadalcanal campaign, earning Edson the Medal of Honor and securing the airfield for the Allies.

General information, not professional advice. Spotted an error? Flag the card or see corrections and complaints.

Intellect Plus is a visual educational discovery platform for exploring fascinating facts and ideas. Brain Food, Not Brain Rot. What is Intellect Plus?

Related

• The Battle for Henderson Field: A Desperate Fight for Air Dominance in the Pacific
• How a remote Pacific island became the decisive turning point of the Pacific War
• American forces fought for control of three strangely named hills on Guadalcanal in 1943.
• How a muddy, malaria-ridden bay became the site of Japan's first major land defeat
• A remote airfield in the Solomon Islands became the pivot point of the Pacific
• The swift 1942 Japanese invasion of Java collapsed Allied defenses in just twelve days.
• Operation Backhander: How US Marines Seized Strategic Airfields on New Britain in 1943
• The Battle of Makin: A Strategic Victory Marred by Unexpectedly High Naval Losses
• The brutal reality of the Buna-Gona campaign that halted a Pacific invasion
• How a daring armoured thrust in Central Burma strangled the Japanese war effort in 1945
• How a brutal island battle in 1944 shaped the outcome of the Pacific War
• How a tiny, muddy island became a critical Allied hub in the Pacific War

More in Pacific War · More in Wars & Conflicts · Latest · A–Z · All topics