A handful of Canadian troops are stationed in Poland and the Ukraine. They're doing support/training, so I doubt combat is planned:
Over 300 CAF personnel are currently deployed on Op UNIFIER.
Since August 2022, approx. 180 CAF have been deployed to the UK to support the training of Ukrainian recruits.
Since October 2022, Canada has deployed approximately 45 combat engineers to Poland to assist in the training of Ukrainian sappers.
Since March 2023, CAF has deployed approximately 10 medical personnel to Poland to assist in the provision of lifesaving skills to Ukrainian soldiers.
Other personnel are currently stationed in Europe working with Allies on a range of topics including the facilitation of military aid, alignment of future donations, as well coordination for the immediate and longer term training needs of the Ukrainian Forces.
NATO countries have avoided direct involvement the war for two years. Seems weird that they would start now.