- We can't defeat this army!
- We can! And we will!

6 seconds sound clip from the Braveheart (1995) movie soundboard.

You can hear this line at 01:56:19 in the Blu-ray version of the movie.

Quote context

[...]

- Now, unless you want to see Edinburgh razed to the ground...

- My army has marched for more days than I can remember and we still have preparations to make, so I'll make this plain.

- We require every soldier you can summon. Your personal escorts, even yourselves, and we need them now.

- With such a force arrayed against us, it's time to discuss other options.

- Other options? Don't you wish at least to lead your men onto the field and barter a better deal with Longshanks before you tuck tail and run?

- We can't defeat this army!

- We can! And we will!

- We won at Stirling, and still you quibble!

- We won at York, and you would not support us.

- If you'll not stand up with us now, then I say you're cowards.

- And if you are Scotsmen, I'm ashamed to call myself one.

[...]