What does 'launch an assault on sth.' mean?
What does 'launch an assault on sth.' mean?
And what's the meaning of this sentence: I would have launched the same assault on obesity that I did on smoking.

Question

What does 'launch an assault on sth.' mean?
What does 'launch an assault on sth.' mean?
And what's the meaning of this sentence: I would have launched the same assault on obesity that I did on smoking.

Answer

Hi Wendy
The phrase 'Launch an assault' means to begin an attack on something. That is, to attack something aggressively.