Defender of Ukraine Day

Defender of Ukraine Day (, "Den' zakhysnyka Ukrayiny") is a state holiday in Ukraine celebrated annually on 14 October. Its first celebration was in 2015. Starting from 2015, this day is considered a public holiday (this is thus a day off in Ukraine).
History.
On 14 October 2014, a decree by Ukrainian President Petro Poroshenko decreed the new holiday due to the Russian military intervention in Ukraine (2014–present) and decommunization in Ukraine. This decree was approved by the Ukrainian parliament on 5 March 2015. On 24 August 2014 (Independence Day of Ukraine) President Poroshenko proclaimed that Ukraine should not celebrate the holidays of the "military-historical calendar of Russia" but "We will honor the defenders of our homeland, not someone else's".
The holiday replaced the former 23 February's holiday called Defender of the Fatherland Day, which has its origin in the Soviet Union. As the Ukrainian SSR, Ukraine was part of the Soviet Union from 1922 until Ukraine declared its independence from the Soviet Union on 24 August 1991.
14 October in Ukrainian history.
The chairman of the Ukrainian Institute of National Remembrance Volodymyr Viatrovych motivated the choice of the date for 14 October on the Ukrainian historical tradition of honoring the Ukrainian army on the day of the Intercession of the Theotokos. This holiday has been celebrated by Ukrainians since the 12th century. The holiday was especially popular among Ukrainian Cossacks, who celebrated it since at least the 17th century as they believed the Mother of God (also known as Theotokos) to be their patroness. Fourteen October is also the Day of the Ukrainian Cossacks.
In an effort to adopt some Cossack traditions, the Ukrainian Insurgent Army chose the day of the Intercession of the Theotokos to be the official day of their establishment.
On 12 October 2015, the National Bank of Ukraine put into circulation 50,000 pieces of 5 hryvnia coins with an inscription "Day of Defender of Ukraine".