On Tuesday, children in Ivanovo, Russia, marched through the streets in military uniforms during a parade to celebrate the upcoming 74th Victory Day. /VCG Photo

First inaugurated in 15 republics of the former Soviet Union, Victory Day commemorates the surrender of the Nazis in 1945 and the end of World War II on May 9 every year. /VCG Photo

Victory Day is usually celebrated with military parades, concerts and fireworks, as well as recognition of veterans. The first military parade took place on May 9, 1965, 20 years after the victory over the Nazis in 1945. /VCG Photo

The 2019 Moscow Victory Day Parade, which will take place on Thursday in the Red Square, will be the biggest of all the parades happening on this day in Russia and many former republics of the Soviet Union, such as Ukraine, Belarus and Georgia, etc. /VCG Photo