Analysis of Japanese Tweets on the Russian Military Invasion of Ukraine Focusing on Frequently Used Words and Emotional Expressions

The massive military invasion of Ukraine by the Russian forces, which began on February 24, 2022, has had significant global impacts. On the social media platform Twitter (now X), users have been actively posting their thoughts and opinions regarding the invasion. In this study, we collect Japanese posts (tweets) containing the two words “Russia” and “Ukraine” that were posted over an approximately one-year period from the time the invasion began. We analyze the tweets focusing on frequently used words and emotional expressions in the tweets to gain an overview of the statements and the online discussions about the invasion.