British Prime Minister David Cameron called for better business ties with Russia on Monday before talks with Russian leaders intended to improve relations. Cameron will meet Prime Minister Vladimir Putin and President Dmitry Medvedev on a visit to Moscow lasting less than 24 hours, Reuters reported. \"We should be candid about the areas where we still disagree,\" Cameron told students at Moscow University. \"But I want to make the case for a new approach based on cooperation.\" Cameron is accompanied by a high-powered 24-strong business delegation.