Russia's economy worried: dependence on China will be Putin's downfall. In addition to China, Russia could lose India as an important trading partner.

The US has been using so-called secondary sanctions for decades to give its primary sanctions more impact. This type of sanctions is intended to prevent individuals abroad from entering into or continuing business contacts with targets affected by US sanctions. The USA and Europe are now focusing on secondary sanctions to put pressure on these states and make the corridors narrower, says economist Marcus Keuppupp.