своих не бросаем

Etymology
For its use in the 2022 Russian invasion of Ukraine, it refers to Russia aiding the Donetsk People's Republic and Luhansk People's Republic, which are pro-Russian breakaway states in Ukraine, hence "we don't abandon our kind".

Phrase

 * 1) we don't abandon our kind, no man left behind
 * 2) * "ru"
 * 1) * "ru"

- #СвоихНеБросаем

Usage notes
Used by Russian nationalists and those supportive of the 2022 Russian invasion of Ukraine to signal support for Russia.