[There's resolve enough resolve behind that to make it obvious that they're more than just words, and that brings ... calling it a 'grin' would be generous. It's a slight twitch at the corner of his mouth. But she has his respect - for the steel she's showing and the tactic. It's clever, provided he understands what she's suggesting properly.]

Use it to thin your enemy's numbers, break down walls they're hiding behind, rattle them, leave a clear path for your men ...

[Has he got the gist of it?]