June 25 in Military History — On This Day

Battle of Little Bighorn

Custer's 7th Cavalry attacked the largest encampment of Plains Indians ever assembled — perhaps 7,000 people including 2,000 warriors — along the Little Bighorn River in Montana Territory. Splitting his command into three columns, Custer led five companies directly into the encampment from the north while Reno and Benteen attacked from other angles. Custer's 210-man battalion was completely surrounded and annihilated in under an hour. Reno and Benteen's survivors held a hilltop under siege for two days before relief arrived.

Little Bighorn, or the Battle of the Greasy Grass as the Lakota call it, was the greatest Native military victory of the Plains Wars era. It shocked the nation, accelerated the military campaign against the Lakota, and transformed Custer into a national martyr — despite his tactical recklessness. The victory was ultimately the beginning of the end, as it brought overwhelming U.S. military force down on the Northern Plains.

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⚔️📍 Little Bighorn River, Montana Territory1876

Battle of Little Bighorn — Custer's Last Stand

Lieutenant Colonel George Armstrong Custer divided his 7th Cavalry and attacked a Lakota and Northern Cheyenne village far larger than expected. Custer's force of 210 men was encircled and annihilated by warriors under Crazy Horse and Sitting Bull.

Little Bighorn was the greatest Native American military victory against the U.S. Army and made Custer a permanent legend — though it also accelerated the military campaign that defeated the Plains nations within two years.

Outcome

Native American victory; Custer and 210 men killed

Casualties

268

Korean War

North Korea's surprise invasion of South Korea on June 25, 1950 drew a UN coalition — overwhelmingly American — into three years of savage combat. The war swung wildly: UN forces were nearly pushed into the sea at Pusan, then MacArthur's brilliant Inchon landing drove the North Koreans back, then Chinese intervention in October 1950 shattered the advance. By 1951 the front had stabilized near the 38th parallel where it began, and two more years of grinding trench warfare produced the armistice of July 27, 1953.

Korea demonstrated that the Cold War would be fought in blood on the periphery of the great power contest. It tripled the U.S. defense budget, locked in containment as American strategy, and established the precedent of limited war — fighting without seeking total victory to avoid nuclear escalation. The peninsula remains divided to this day, with the armistice technically never replaced by a peace treaty. The 'Forgotten War' established the pattern of costly proxy conflicts that defined the Cold War era.

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