President Vladimir Putin laid flowers at the monument to Kuzma Minin and Dmitry Pozharsky on Moscow’s Red Square. The ceremony is attended by the heads of the four main religious confessions of Russia.
Weakening of national state sovereignty could threaten global security, Putin said.
The day's name alludes to the idea that all classes of Russian society united to preserve Russian statehood when there was neither a Tsar nor a Patriarch to guide them.