Santa Anna can't go around and leave a fort along his lines of communication. He must reduce the Alamo by storm.

6 seconds sound clip from the The Alamo (1960) movie soundboard.

You can hear this line at 01:34:28.188 in the Blu-ray version of the movie.

Quote context

[...]

- My only concern here is 23 Tennesseans, so you better let me know what's in your mind.

- I'd have thought that would have been obvious to you.

- It's as simple as this.

- There's Santa Anna with 7000 men.

- Up here is the Sabine River. Somewhere around here, Sam Houston is trying to organize an army. And right in between is the Alamo.

- Santa Anna can't go around and leave a fort along his lines of communication. He must reduce the Alamo by storm.

- Every minute of time we buy for Sam Houston is another precious minute in the life of Texas.

- And, Crockett, nobody is ever going to say that William Barrett Travis did not buy every minute possible.

- Makes sense. Why didn't you tell Bowie that?

- Because a commander does not have to explain his every decision.

- You explained to me.

[...]