The parade in Moscow commemorates Russia's victory over Nazi Germany
The Russian President Dmitri Medvedev has issued a stern warning to any countries considering what he called "military adventures".
Mr Medvedev said they would be met with the proper response.
He was speaking at a military parade in Moscow commemorating the victory over Nazi Germany in World War II.
The speech comes as tensions have flared up again as Georgia hosts a military exercise this month organised by the Nato military alliance.
Speaking in front of thousands of troops on parade in Red Square, Mr Medvedev said that the Soviet Union's defeat of German forces during World War II was a great lesson to all nations which was still relevant today.
Because, he said, some countries were resorting to military adventures.
This page is best viewed in an up-to-date web browser with style sheets (CSS) enabled. While you will be able to view the content of this page in your current browser, you will not be able to get the full visual experience. Please consider upgrading your browser software or enabling style sheets (CSS) if you are able to do so.