Defender of the Fatherland Day (Russian: День защитника Отечества Den' zashchitnika Otechestva; Kazakh: Отан қорғаушы күні; Tajik: Рӯзи Дорандаи Ватан; Kyrgyz: Мекенди коргоочулардын күнү; Belarusian: Дзень абаронцы Айчыны) is a holiday observed in Russia, Turkmenistan, Belarus, Kyrgyzstan, Kazakhstan and Tajikistan. It is celebrated on 23 February, except in Kazakhstan, where it is celebrated on 7 May. Ukraine abolished the holiday starting 1992 and, after the Revolution of Dignity, has instated the somewhat similar Defender of Ukraine Day on 14 October.

https://en.wikipedia.org/wiki/Defender_of_the_Fatherland_Day