Fort Kearny yakanga iri nhare yakavakwa munguva yeHondo yeVanhu veAmerica sechikamu chekudzivirira kweWashington, D.C. Iri pedyo neTenleytown, muDunhu reColumbia, yakazadza mukaha pakati peFort Reno neFort DeRussy kuchamhembe kweguta reWashington. Nhare yacho yakatumidzwa mukuremekedza Major General Philip Kearny weUnion Army, uyo akaurayiwa muhondo yeChantilly
musi waSeptember 1, 1862. Mabhatiri matatu ezvombo (Battery Rossell, Battery Terrill, uye Battery Smead) akatsigira nhare, uye anoonekwa sechikamu chekudzivirira nhare.