The U.S. plans small ground-force exercises amid Russia's military operations in and near Ukraine.
Two of Japan's largest banks have stepped back from Russia in recent weeks, bankers and executives told the Financial Times.
Officials from the Bush and Obama administrations said American officials initially overestimated their potential areas of cooperation with Putin.
Russia is going to great lengths to try to reassure investors, foreign businesses and its own people about its economic and political stability.
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Jan Dunning, CEO of St Petersburg-headquartered hypermarket chain Lenta, says the situation in Ukraine has had no impact on the group, as consumer confidence remains unaffected in Russia.
Vincent Deluard, European strategist at Ned Davis Research Group, says the strong euro is a problem for the region's companies, especially for the large exporters.
European shares closed higher on Thursday as investors brushed aside concerns regarding Ukraine and focused instead on Wall Street earnings and the latest U.S. jobs data.