Rory Stewart 'troubled' by Boris Johnson's 'do or die' Brexit pledge

The transcript discusses the implications of Mr. Johnson's 'do or die' comments on Brexit, referencing Tennyson's poem 'The Charge of the Light Brigade'. The speaker expresses concern over the language used and hopes for a Brexit that benefits Britain's economy, particularly in the car and agriculture industries.

What historical reference is made in relation to the phrase 'do or die'?

What are the key areas the speaker believes Brexit should work for?