The great gates of the Alamo were closed behind them and barred.

For the moment they were safe, because these doors were made of very heavy oak, and it would require immense force to batter them in.

It was evident that the Mexican horsemen on the plain did not intend to make any such attempt, as they drew off hastily, knowing that the deadly Texan rifles would man the walls at once.
"Well, here we are, Ned," said the cheerful voice of Davy Crockett, "an' if we want to win glory in fightin' it seems that we've got the biggest chance that was ever offered to anybody.

I guess when old Santa Anna comes up he'll say: 'By nations right wheel; forward march the world.' Still these walls will help a little to make up the difference between fifty to one." As he spoke he tapped the outer wall.
"No Mexican on earth," he said, "has got a tough enough head to butt through that.

At least I think so.