Russia is due to stage its biggest ever military parade in the capital Moscow to mark 70 years of victory over Nazi Germany in World War Two.
Thousands of troops will march on Red Square, and new high-tech armour will be on show for the first time.
Military units from across Russia - some dressed in WWII-era uniforms - will be marching, and more than 100 aircraft will fly over Red Square.
The victory parade in Moscow is due to start at 10:00 local time (07:00 GMT), after a series of dress rehearsals on the streets of the capital.
The most talked-about new hi-tech Russian armour is the T-14 Armata battle tank, which has a remote-controlled gun turret and reinforced capsule for the crew.
The RS-24 Yars intercontinental ballistic missiles - each capable of delivering three nuclear warheads - will also be on show.
More than 20 heads of states are in Moscow, but many world leaders are boycotting the event because of Russia`s role in the Ukraine crisis.
Russia denies claims by the West that it is arming rebels in eastern Ukraine.
More than 6,000 people have been killed since fighting began in April 2014 in Ukraine`s Donetsk and Luhansk regions.
