The popularity of the instant messaging app Telegram in Ukraine and Russia was strong even before the still-ongoing Russian invasion of Ukraine. However, since 24 February 2022 (when the Russian invasion began), it has seen huge increases in subscribers and even become the primary communication and news source in Ukraine. In this exploratory research, we analyzed Telegram channels from both Ukraine (@UkraineNow — the official channel of the Ukrainian government, and @V_Zelenskiy_official — the official channel of Volodymyr Zelenskyy) and Russia (@rt_russian — the official channel of the news network RT) to discern the content of posts during this invasion. Our analysis of 37,172 posts in total showed that while @UkraineNow is particularly being used to communicate invasion-related news, @rt_russian is working as merely an extension of RT, which is part of the pro-Kremlin propaganda and disinformation ecosystem. However, Zelenskyy has opted for a completely different approach: he has used his Telegram channel to encourage Ukrainians and garner support from the world. The present conflict is at a critical juncture, and our timely research seeks to determine how both countries’ governments are utilizing Telegram as a weapon in the information war and what impact this has on ground.