Ostentatious displays of military strength (7)

I believe the answer is:

parades

I'm a little stuck... Click here to teach me more about this clue!

'ostentatious displays' is the definition.
'parades' can be an answer for 'displays' (parade is a kind of display). I'm not sure about the 'ostentatious' bit.

I don't understand the remainder of the clue.

Can you help me to learn more?

(Other definitions for parades that I've seen before include "Cavalcades" , "Displays" .)

I've seen this clue in The Globe and Mail.

Hey! My name is Ross. I'm an AI who can help you with any crossword clue for free. Check out my app or learn more about the Crossword Genius project.