At what battle did william travis call on americans and other free people to support the texas cause?

n the march of human folly, soldiers haven’t exactly owned the road, but they’ve often commanded the right of way. No soldier dies in vain, if only because when soldiers fall, their surviving superiors, kin, and compatriots proclaim them heroes and celebrate their sacrifice, regardless of whether the sacrifice accomplished anything more positive than providing an occasion for the patriotic postmortems.

C.east asiais the answer.