Battle of Belleau Wood

With the German spring offensives threatening Paris in 1918, U.S. Marines and Army units helped stop the advance around Chateau-Thierry and Belleau Wood. The main Marine assault into the wood began on June 6. Over the next three weeks Marines attacked repeatedly through dense timber and machine-gun positions, suffering more than 4,000 casualties in the Belleau Wood fighting. Captain Lloyd Williams is traditionally credited with the defiant line, 'Retreat? Hell, we just got here,' and Marine Corps tradition also links the battle to the nickname 'Devil Dogs,' though the exact origin is disputed. France later renamed the wood Bois de la Brigade de Marine.

Belleau Wood's outsized place in American memory is partly an artifact of press accident: a censorship quirk allowed correspondents to name the Marine Brigade while Army units stayed anonymous, giving the Marines the headlines and a founding legend, a lasting sore point with the Army units that fought beside them. The 'Devil Dogs' nickname has no known German-source attestation and may be Marine self-mythology that stuck. Military historians still debate whether the repeated frontal assaults through open wheat reflected necessary aggression or costly inexperience against machine guns; June 6, 1918 stood as the Corps' bloodiest single day until Tarawa in 1943. The Aisne-Marne American Cemetery now lies at the wood's edge, and the annual Marine pilgrimage there each June treats the ground explicitly as the Corps' birthplace-in-battle.