“Russian warship, go fuck yourself” (Russian: Русский военный корабль, иди нахуй) was the last communication made to the Russian missile cruiser Moskva by Roman Hrybov, a border guard defending Snake Island in Ukraine’s territorial waters.
The phrase became widely adopted in protests and demonstrations around the world and was later commemorated on a postage stamp by the Ukrainian postal service.
One day after the first issue of the commemorative stamp, the Moskva was critically damaged by Ukrainian anti-ship missiles and sank the following day, enraging Vladimir Putin. Hrybov was awarded a medal for his courageous action (Wikipedia).
Victory to Ukraine!