I only have a guess which can't be proven, but I suspect Canadian special forces (JTF2) could be or intends to be in Ukraine. It was announced just 50 normal Canadian troops would be sent to Poland for exercises as well as for NATO reassurance to eastern Europe.
Looking at what is known of JTF2, many of their missions involve 40-50 estimates, and they do have a reputation for being ambiguous, they were even the first Canadians in Afghanistan in October 2001 in secret, behind the prime minister's back.
It's a hypothesis.