And this is not the first time this Dishonourable Member  has made this claim as noted by CTV News:

"It’s not the first time the defence minister made the claim. In an interview from 2015 before he took office, Sajjan referred to himself as “the architect” of the operation and attributed the praise to Chief of Defence Staff Gen. Jonathan Vance.

"If I can quote him, he said I was the architect of Operation Medusa, one of the biggest operations since the Korean War that Canada has led. We took the fight hard to the Taliban," Sajjan says in the video."

Here is that 2015 interview:
https://www.youtube.com/watch?v=h1fWSq0mnXM