Sergey Ivanov, a former Russian Defense Minister and influential official, has died at the age of 73. He held numerous high-ranking positions, including deputy prime minister, secretary of the Russian Security Council, and head of the presidential administration. Ivanov was once considered a potential successor to Vladimir Putin but lost an internal power struggle.

• Sergey Ivanov, former Russian Defense Minister, has died at 73.
• He served in various influential roles, including deputy prime minister, defense minister, and head of the presidential administration.
• Ivanov was once seen as a potential successor to Vladimir Putin.
• Since 2016, he was the president’s special representative for environmental affairs, ecology, and transport.