A day after Canada’s NATO delegation mocked Russia by tweeting a map of Ukraine’s borders, NATO’s Russian mission fired back with a map of their own.

As perhaps expected, the maps showed different borders in the eastern Ukrainian region of Crimea, which was annexed to Russia in a vote earlier this year that has been disputed by most Western nations.

Here is Russia’s tweet:

The Russian delegates were responding to Canada at NATO’s tweet that included an illustrated map denoting Ukraine as “Not Russia,” after a military representative said a Russian soldier had “accidentally” entered Ukraine on Wednesday.

The original tweet from Canada attracted far more attention and praise, it seems, for its direct approach to Russia’s intensifying aggression toward a sovereign Ukraine.

With the situation in eastern Ukraine intensifying each day, the response to Russia at NATO’s tweet took a decidedly angrier tone: