Some Russians fear President Vladimir Putin will use his speech at the parade to declare the "special military operation" in Ukraine — as the Kremlin insists it be called — as a full-fledged war.
That declaration would precede a broad mobilization of troops to bolster Russia's forces.
Asked by The Associated Press whether mobilization rumors could dampen the Victory Day mood, Putin spokesman Dmitry Peskov said "nothing will cast a shadow" over "the sacred day, the most important day" for Russians.
Human rights groups report a spike in calls from people asking about laws concerning mobilization and their rights in case of being ordered to join the military.
Russian state TV has ramped up the patriotic rhetoric. In announcing the Feb. 24 military operation, Putin declared it was aimed at the "demilitarization" of Ukraine to remove a perceived military threat to Russia by "neo-Nazis."
A recent TV commentary said Putin's words were "not an abstract thing and not a slogan" and praised Russia's success in Ukraine, even though Moscow's troops have gotten bogged down, making only minor gains in recent weeks.
One official has suggested that Victory Day marchers display photos of soldiers now fighting in Ukraine. Normally on the holiday, Russians carry portraits of their relatives who took part in World War II to honor those in the so-called "Immortal Regiment" from a conflict in which the Soviet Union lost a staggering 27 million people.
