Mezue ahịrịokwu na-esonụ: Ọ banyere ụgbọ mmiri gaa France na February 4, 1918, dị ka onye so na Kọmitii nke 119 nke Battalion Mbụ nke Na-anọchi, Ndị Agha Mmiri United States, na-abata na Brest na February 26. Ndị otu ya wee banye ọzụzụ na Châtillon-sur-Cher, ebe Overton gara ụlọ akwụkwọ ọzụzụ ndị ọrụ na Gondremont, France, na nso Bezange-la-Grande. Ọ gụsịrị akwụkwọ n'isi klas ya na May 31, 1918, ma zigara ya na June 1 maka nyocha na Forty Second Regiment nke French Chasseurs guzobere na Ugwu Vosges. A malitere ya dịka onye otu nsọpụrụ nke French Chasseurs ma nọrọ na ndị agha site na June 1 <unk> 13. Mgbe ndị Marines gbara aka na Chateau-Thierry na mbido June, ọ rịọrọ ka e si na ụlọ ọrụ ya nke ka na-azụ ọzụzụ gaa n'ihu, na June 16 ọ bịarutere n'ogige ndị agha mmiri n'etiti Agha nke Belleau Wood, nke malitere na June 1 ma ga-aga n'ihu ruo June 26. N'ebe ahụ, e kenyere Overton onye ọrụ nke abụọ na 18th Company, 6th Regiment, U.S. Marines, akụkụ nke 4th Brigade na 2nd Division. O jere ozi na Belleau Wood ruo July 9. N'ụbọchị nke abụọ n'ọnwa Julaị, e buliri ya n'ọkwa onye isi ndị agha, mana ọ gaghị amụta nke ahụ ruo mgbe ọ nwụrụ. Site na Julaị 9 <unk> 16 ọ nọ na Nanteuil-sur-Marne. N'abalị iri na isii n'ọnwa Julaị, a kpọgara ndị agha ya na ndị agha nke ise n'ọgbọ agha ndị France dị nso na Soissons ka ha sonyere ndị agha nke ndị France.
Agha nke Abụọ nke Marne. Ngalaba ahụ bụ mgbe ahụ akụkụ nke Marshal Ferdinand Foch's Allied offensive na Soissons salient malitere July 18, 1918, nke ya n'okpuru French General Charles Mangin.