 Russia stages its annual Victory Day parade on Red Square on Tuesday amid particularly tight security after a series of drone attacks, including on the Kremlin citadel, symbolic heart of the Russian state that Moscow has blamed on Ukraine. Victory Day is a key anniversary for President Vladimir Putin, who often evokes the spirit and sacrifice that helped the Soviet Union defeat Nazi Germany in 1945 to kindle Russian's sense of patriotism, especially since launching what he calls a special military operation in Ukraine on February 24, 2022. But several Russian regions have already scaled back events, citing concerns that they could be targeted by pro-Ukrainian saboteurs. Russian security concerns have grown over the past week following drone attacks targeting fuel depots and freight trains, while media on Sunday also reported overnight multiple blasts across Russian-occupied Crimea. Putin's office linked what it called the terrorist drone attack on the Kremlin in the early hours of May 3 to the Victory Day parade.