MOSCOW (Reuters) - Following are biographical details of some of the 20 Russians targeted on an expanded U.S. sanctions list announced by President Barack Obama on Thursday.
SERGEI IVANOV, 61, is a former senior foreign intelligence officer who held the posts of Defence Minister and Deputy Prime Minister under Putin. He is now head of the presidential administration. Ivanov - an old friend of President Vladimir Putin - has known his boss since his KGB service in the 1970s and is one of the most influential conservatives from the security world, a group known as the "Siloviki". Ivanov was a rival to Dmitry Medvedev to succeed Putin as president when Putin stepped aside for four years to become prime minister in 2008 because of constitutional limits.
