Canadian Prime Minister Justin Trudeau has firmly stated that Ukraine should be allowed to conduct long-range strikes inside Russian territory, despite threats from Moscow.
This stance comes in the wake of Ukrainian forces occupying parts of Russian territory for the first time since World War II, and Ukrainian officialls asking Western partners to remove restrictions on the use of Western long-range weapons so that Ukraine can degrade Russia’s logistics and airfields in the rear and bring the war to an end faster.
“Canada fully supports Ukraine using long-range weaponry to prevent and interdict Russia’s continued ability to degrade Ukrainian civilians and infrastructure, and mostly to kill innocent civilians in their unjust war,” Trudeau declared at a news conference in Sainte-Anne-de-Bellevue, Quebec.
It's good to say this part out loud so others can simply join in with his statement.
It may even be an orchestrated diplomatic act where one western nation starts the choir that's not that deeply involved with the hardware so they don't have any connections to the military complex. Man give them more credibility.
The US are using their influence to prevent it. France and the UK had already given permission for SCALP-EG/Stormshadow to be used. According to articles quoting a state department source, the US told Ukraine they could compromise aid if they used another nations weapons, regardless of permission. That article pointed out that the US policy doesn't allow for a defeat of Russia that would make a "reset of relations" difficult. This slow political pressure is needed to more publicly isolate the American position and force concessions.
Unfortunately I can't find the article again, I believe it was in Forbes. It was mentioned in a Military & History update on Ukraine.