Великая Отечественная война(2020 marks 75 years since the end of the Great Patriotic War (as Russians call World War II); we're expecting big celebrations to mark the anniversary, and have already seen some remarkable incidents.russianlife.com)
Великая турецкая война(a series of conflicts between the Ottoman Empire and several contemporary European powers joined into a Holy League, beginning in 1683 and ending with the signing of the Treaty of Karlowitz in 1699. The war was a defeat for the Ottoman Empire, which lost large amounts of territory in Central Europe. The war was also significant in that it marked the first time Russia was involved in a western European alliance Alex_Odeychuk)