WATCH: Russian Jets Form 'Putin's Swastika' Symbol; 11,000 Soldiers Prepare For Parade

Russian planes formed what appeared to be a known pro-war symbol during a rehearsal for a military parade, footage showed.

A total of 77 aircraft from Russia's Aerospace Forces flew over the Alabino area Monday in a training exercise for the aviation part of the country's Victory Day parade that is set to take place in Moscow's Red Square on May 9, Russian state-owned media agency RIA Novosti reported, citing the Russian Defense Ministry.

Domestically produced fighter jets such as the Sukhoi Su-35 "Flanker-E" and the new Su-57 "Felon" participated in the training, as well as the iconic Tupolev Tu-95MS "Bear" long-range bomber and the Mil Mi-24 "Hind" attack helicopter, among others.

Around eight planes, understood to be from the Russian Knights and Swifts aerobatics teams, formed what appeared to be the letter "Z" during the Monday flyover, footage showed.

The symbol was seen painted on some Russian military vehicles in the invasion of Ukraine, and it has since been used to show support for the ongoing war.

It was also nicknamed "Putin's swastika" over the supposed similarities between Russian President Vladimir Putin and Nazi dictator Adolf Hitler, whose party used the originally religious swastika as an emblem for the theorized superiority of the Aryan race.

"[The Russians] train the pilots to fly in a Z, much like Hitler had his fly in a swastika," Ukrainian lawmaker Lesia Vasylenko said in a post that featured footage of the Alabino exercise taken from RIA Novosti.

Something similar happened in 1935 when German planes flew in a swastika formation over a Nazi rally in Nuremberg, a city that hosted several of the party's assemblies before the outbreak of the Second World War. It was also known for the post-war Nuremberg trials that saw the prosecution of several high-ranking German officials.

Putin is expected to declare victory on May 9, which is one of Russia's most important national holidays, CNN reported. This year's Victory Day will mark the 77th anniversary of the Soviet Union's triumph against Nazi Germany in the Great Patriotic War during World War II.

In addition to the previously mentioned 77 aircraft, a total of 11,000 Russian servicemen and 131 pieces of military equipment will take part in this year’s Moscow Victory Day Parade, another report by RIA Novosti said.

The T-14 “Armata,” Russia’s next-generation main battle tank, which has not been spotted in the invasion of Ukraine, will be among the vehicles to make an appearance, added the outlet.

Russian soldiers were told to end the war in Ukraine by the time Russia celebrates this year's Victory Day, according to the General Staff of the Armed Forces of Ukraine.