Nhau yacho inotanga nepfungwa yokusiyana muna December 1860 apo mukuru mukuru David E. Twiggs anodzingwa achitadza kutungamirira Dhipatimendi reTexas, izvo zvinoita kuti Lieutenant-Colonel Robert E. Lee ave mutungamiriri. Nyaya yacho pachayo yakaiswa muna February 1861, nguva pfupi pashure pokunge nyika yeTexas yavhota kuti ibve muUnited States kuti ibatanidzwe neConfederation, kusvika muna March 1861. Lee anogumisa kuti ibasa rake kudzivirira zvombo zveU.S. Army nepfuma muSan Antonio, Texas, kusanganisira Alamo ane mukurumbira, pane kubvumira kuzvipira kwavo kuhurumende yeTexas yakazvimiririra, sezvakaitwa naTwiggs muupenyu chaihwo. Izvozvo zvinotungamirira kuHondo yechipiri yeAlamo
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