Gee, great. Unfortunately, borders CAN be changed by force if no-one helps insufficiently strong defenders enough. It's all just twaddle until he gets Canada into a coalition - which might not include the US - willing to spend the money and make the sacrifices to apply meaningful military and economic pressure. It reminds me of the statements governments provide to news agencies on the embarrassing stories of the day - "The government of X is committed to <insert high-minded ideals bereft of evidence of useful action here>".
Canada is neck deep in debt and deficits. Other than being a fiscal moderate, maybe even conservative, on general management of money, Carney is pretty much a conventional contemporary Canadian Liberal on social programs, climate change, etc; and deficit spending to pay for all of the aforementioned. His party blew away what little pre-2015 fiscal freedom of manoeuvre we had, and he's in support of most of the causes of that. Is he planning anything on a time scale less than the one used to measure elections, I wonder.
The tut-tutting international community is moving more slowly on meaningful support of Ukraine than they are on routing around Trump's international trade damage. Just a stream of Serious Statements.