The Battle for Chosin was brutal, but I think if you are going to mention hardcore USMC balls out fight-to-the-death exploits then I think you have to mention Belleau Wood (WWI) and Tarawa (WWII)
from Nationmaster.com:
The Battle of Belleau Wood
The Battle of Belleau Wood was a battle of the first World War. It occurred near the Marne River in France between June 1st and June 26th 1918. The battle was fought between the U.S. Second (under the command of James Harbord) and Third Divisions and a hodgepodge of German units including elements from the 237th, 10th, 197th, 87th, and 28th Divisions.
Importance
In a battle noteworthy because of both its extremely bloody nature and its close proximity to the French capital of Paris, the American Expeditionary Force (AEF) launched a counter-attack designed to stop the German advance. The Second Division was tasked with taking the woods, and the 4th Brigade with its 5th and 6th Marine Regiments was sent forward.
In order to enter and take the woods, it was necessary to advance across an open field of wheat that was continuously swept with murderous German machine gun and artillery fire.
After Marines were repeatedly urged to turn back by retreating French forces, Marine Captain Lloyd Williams of the 2nd Battalion, 5th Marines uttered the now-famous retort “Retreat, hell. We just got here.”
The Eiffel Tower has become a symbol of Paris throughout the world. … Officers of the American Expeditionary Force and the Baker mission The American Expeditionary Force or AEF was the United States military force in World War I. The AEF helped the French defend the Western Front during the Aisne Offensive in May. … Patch of the United States Army 2nd Infantry Division. …
The 5th Marine Regiment (5th Marines) is a critical componet of the 1st Marine Division. … A machine gun is a fully-automatic firearm that is capable of firing bullets in rapid succession. …
Historically, artillery refers to any engine used for the discharge of projectiles during war. … Captain is both a nautical term and a military rank. … 1 June 1918 2nd Division troops dig in along a defensive line just north of the village of Lucy-le-Bocage. …
Symbol of the Austrian 14th Armoured Battalion in NATO code In military terminology, a battalion consists of two to six companies typically commanded by a lieutenant colonel. …
On June 6, the casualties were the highest in Marine Corps history (and remained so until the capture of Tarawa in November 1943). Overall, the woods were taken by the Marines (and the US Army 3rd Brigade) a total of six times before they could successfully expel the Germans.
They fought off more than four divisions of Germans, oftentimes reduced to using only their bayonets or fists in hand-to-hand combat. In order to rally his platoon of pinned-down Marines, Gunnery Sergeant Dan Daly encouraged them with what would become another famous phrase “Come on, you sons of bitches, do you want to live forever?”
The Battle of Tarawa was a battle in the Pacific Theatre of World War II, largely fought from November 20-23, 1943. … For other uses, see November (disambiguation). … 1943 (MCMXLIII) is a common year starting on Friday. … US Army Seal HHC, US Army Distinctive Unit Insignia The Army is the branch of the United States armed forces that has primary responsibility for land-based military operations. …
A division is a large military unit or formation usually consisting of around ten to fifteen thousand soldiers. … The US Marine Corps OKC-3S bayonet A bayonet is a knife- or dagger-shaped weapon designed to fit on or over the muzzle of a rifle or similar weapon. … Gunnery Sergeant insignia (U.S. Marine Corps) Gunnery Sergeant is the seventh enlisted rank in the U.S. Marine Corps, just above Staff Sergeant and below Master Sergeant and First Sergeant, and is a staff non-commissioned officer. …
Sergeant Major Daniel Joseph Dan Daly (11 November 1873 ? 28 April 1937) was a United States Marine. …
On June 26th, a report was sent out simply stating, “Woods now U.S. Marine Corps entirely,”[4] ending the bloodiest and most ferocious battle U.S. forces would fight in the war. June 26 is the 177th day of the year (178th in leap years) in the Gregorian Calendar, with 188 days remaining. …
After the battle
In the end, U.S. Forces suffered a total of 9,777 casualties, 1,811 of them being fatal. There is no clear information on the total number of Germans killed, although 1,600 troops were taken prisoner. Combined with the actions at Chateau Thierry, the Battle of Belleau Wood brought an end to the last major German offensive of World War I.
The Battle of Chateau Thierry was fought on July 18, 1918. … Combatants Entente Powers Central Powers Commanders {{{commander1}}} {{{commander2}}} Strength {{{strength1}}} {{{strength2}}} Casualties > 5 million military deaths > 3 million military deaths World War I, also known as the First World War and (before 1939) the Great War, the War of the Nations, War to End All Wars was a world conflict…
After the battle, the French renamed the wood “Bois de la Brigade de Marine” (“Wood of the Marine Brigade”) in honor of the Marines’ tenacity. The French government also later awarded the 4th Brigade the Croix de Guerre. Belleau Wood is also where the Marines got their German nickname of “Teufelshunde” or “Devil Dogs” for the ferocity with which they attacked the German lines.
An official German report classified the Marines as “vigorous, self-confident, and remarkable marksmen…”[5] United States Marine Corps Emblem The United States Marine Corps (USMC) is a branch of the U.S. military. … The Croix de guerre is a military decoration of both Belgium and France which was first created in 1915. …
General Pershing, Commander of the AEF said, “The Battle of Belleau Wood was for the U.S. the biggest battle since Appomattox and the most considerable engagement American troops had ever had with a foreign enemy.”[6] General John Pershing John Joseph Black Jack Pershing (September 13, 1860 ??? July 15, 1948) was an officer in the United States Army. … Appomattox is a town located in Appomattox County, Virginia. …
Memorial
In 1923, an American battle monument was built in Belleau Wood. Army General James. G. Harbord, the commander of the Marines during the battle, was made an honorary Marine. In his address, he summed up the future of the site: 1923 (MCMXXIII) was a common year starting on Monday (link will take you to calendar). … For the boxer, see Mike Tyson. …
US Army Seal HHC, US Army Distinctive Unit Insignia The Army is the branch of the United States armed forces that has primary responsibility for land-based military operations. … General is a high military rank, used by nearly every country in the world. … James Harbord was a U.S. Army officer and a business executive. …
"Now and then, a veteran ... will come here to live again the brave days of that distant June," Harbord said. "Here will be raised the altars of patriotism; here will be renewed the vows of sacrifice and consecration to country. Hither will come our countrymen in hours of depression, and even of failure, and take new courage from this shrine of great deeds."[7]
Today, at the American cemetery nearby, white crosses and Stars of David mark 2,289 graves, 250 for unknown service members, and the names of 1,060 missing men adorn the wall of a memorial chapel. Visitors also stop at the nearby German cemetery where 8,625 men are buried; 4,321 of them - 3,847 unknown - rest in a common grave.