  Reddit consists of sub-communities that cover a focused topic. This paper
provides a list of relevant subreddits for the ongoing Russo-Ukrainian crisis.
We perform an exhaustive subreddit exploration using keyword search and
shortlist 12 subreddits as potential candidates that contain nominal discourse
related to the crisis. These subreddits contain over 300,000 posts and 8
million comments collectively. We provide an additional categorization of
content into two categories, "R-U Conflict", and "Military Related", based on
their primary focus. We further perform content characterization of those
subreddits. The results show a surge of posts and comments soon after Russia
launched the invasion. "Military Related" posts are more likely to receive more
replies than "R-U Conflict" posts. Our textual analysis shows an apparent
preference for the Pro-Ukraine stance in "R-U Conflict", while "Military
Related" retain a neutral stance.

Social and Information Networks