Relations between Britain and Russia come under the spotlight today with a visit to Moscow by the UK Prime Minister.
David Cameron is due to meet President Dmitry Medvedev and the man many believe is still the most powerful in Russia, Prime Minister Vladimir Putin.
The two countries are expected to sign nearly 250 million euros of trade deals and agree to co-operate on civil nuclear energy.
The agreements could help Britain “reset” ties with Moscow, which have been strained since the 2006 poisoning of former KGB spy Alexander Litvinenko by suspected Russian agents at a London hotel.
A significant amount of the radioactive Polonium-210 chemical was found in the whistleblower’s body.
Litvinenko died three weeks later in hospital.
Following the murder, investigators in Britain called for the extradition of suspect Andrei Lugovoy which the Kremlin blocked.
The UK then halted cooperation with Russia’s security services and imposed other sanctions on Moscow.