Russia - the largest country on earth in terms of surface area - emerged from a decade of post-Soviet economic and political turmoil to reassert itself as a world power.
Income from vast natural resources, above all oil and gas, have helped Russia overcome the economic collapse of 1998. The state-run gas monopoly Gazprom is the world's largest producer and exporter, and supplies a large share of Europe's needs.
Economic strength has allowed Vladimir Putin - Russia's dominant political figure since 2000 - to enhance state control over political institutions and the media - a process supplemented more recently by an emphasis on fierce nationalism and hostility to the West.
At a glance
- Politics: Vladimir Putin, Russia's dominant political figure since 2000, resumed the presidency in 2012
- Economy: Russia is heavily dependent on oil and gas exports. Officials have been hesitant to privatise energy assets
- International: Russia has reacted with hostility to any developments perceived to threaten its strategic interests. The 2014 revolution in Ukraine sparked the biggest East-West showdown since the Cold War
Country profiles compiled by BBC Monitoring
A period of rapid privatisation under the rule of President Boris Yeltsin in the early 1990s created a powerful group of magnates - known as "oligarchs" - with vast energy, media and other business interests, in a sharp contrast to widespread economic hardship among ordinary Russians.
Yeltsin's handpicked successor, former KGB officer Vladimir Putin, quickly moved to break the oligarchs' influence, and a close-knit circle of his associates has since - directly or indirectly - to a large replaced extent them in their control of key economic assets.Russia resurgent
Back by a booming economy, Russia in the 2000s adopted a more assertive foreign policy stance, and began to promote its perceived interests in former Soviet states more openly, even at the cost of antagonising the West.
The resulting tensions first became acute in August 2008, when a protracted row over two breakaway regions of Georgia escalated into a military conflict between Russia and Georgia.
Further diplomatic friction followed over US missile defence plans in Eastern Europe - since shelved - and Moscow's role in Iran's nuclear energy programme.
A "reset" of Russia-US ties early in 2010 resulted in a new nuclear arms treaty to replace the expired 1991 Strategic Arms Reduction Treaty (Start), but fell foul of Kremlin anger at US criticism of its treatment of opposition activists.
The Ukrainian revolution of February 2014, which ousted Russian ally President Viktor Yanukovych and ushered in a Western-leaning leadership, triggered an even more serious crisis in East-West relations, especially after Russia responded by annexing Crimea.
The US, EU and other Western states accused Moscow of directly supporting the subsequent pro-Russian rebellions in eastern Ukraine, and imposed sanctions against businesses and individuals close to President Putin
Some fear the start of a protracted stand-off between West and Russia, and even a new Cold War.Economic muscle
Russia's recent economic power has lain in its key natural resources - oil and gas.
The energy giant Gazprom is close to the Russian state and critics say it is little more than a tool used by the Kremlin to bolster control both at home and abroad.
Moscow has more than once reminded the rest of the world of the power it wields as a major energy supplier, most recently in the Ukraine conflict in 2014.
A long economic boom based on high oil and gas prices started to end in 2013, when Russia's economic prospects began to worsen.
This was exacerbated by a sharp fall in world oil prices and the imposition of Western sanctions over Ukraine the following year.
Some observers say the root cause is that the economy is still too dependent on raw material exports, as well as the Putin regime's reluctance to embark on reform to encourage diversification for fear of imperilling its control.Ethnic and religious divisions
While Russians make up more than 80% of the population and Orthodox Christianity is the main religion, there are many other ethnic and religious groups. Muslims are concentrated among the Volga Tatars and the Bashkirs and in the North Caucasus.
Separatists and latterly armed Islamists have made the Caucasus region of Chechnya a war zone for much of the post-Soviet era.
Many thousands have died since Moscow - fearful of its control of the wider North Caucasus - sent in troops to put down a separatist rebellion in Chechnya in 1994, and again five years later.
With a pro-Kremlin now firmly in charge in Chechnya, Russian has since declared the insurgency effectively finished, although sporadic violence continues.